Answers
- 20 from both sides
and 7x=70
divided by 7, x= 10
Related Questions
the list represents a student's grades on tests in their math class. 59, 65, 70, 80, 98, 71, 45, 79, 77, 85 find the mean and interpret its meaning as it relates to the student's overall work in the course.
A. The mean is 72.9 and shows that the student has an average grade and understanding of the subject but struggles at times.
B. The mean is 74 and shows that the student has a poor grade and struggles understanding the subject.
C. The mean is 80.6 and shows that the student has an average grade and understanding of the subject.
D. The mean is 98 and shows that the student has a high average and fully understands the subject.
Answers
Answer:
Step-by-step explanation:
the average score, calculated by dividing the sum of scores by the number of examinees. Median: the middle raw score of the distribution; 50 percent of the obtained raw scores are higher and 50 percent are lower than the median.
How do you these math question???
Answers
x=4
Step-by-step explanation:
if x equals 4 the whole equation satisfys
Jamal performed an experiment flipping a coin. He did 10 trials and then his arm got tired. He recorded his results in the table. Based on the experimental probability, Jamal predicted that the number of times the coin lands heads up will always be greater than the number of times it lands tails up. What is the error in his prediction?
A 3-column table with 2 rows. Column 1 is labeled Coin with entries heads, tails. Column 2 is labeled Observed frequency with entries 8, 2. Column 3 is labeled Experimental probability with entries 0.80, 0.20.
He should have performed fewer trials before comparing them to the theoretical probability.
He did not need to perform the experiment to compare theoretical and experimental probabilities.
He should have subtracted the theoretical probability from the experimental probability.
He did not perform enough trials to compare the theoretical and experimental probabilities.
100 points
Answers
Answer: He did not perform enough trials to compare the theoretical and experimental probabilities.
Step-by-step explanation:
He only gave two entries for the experimental probability.He would need atleast four or three.
Hope this helped you!
Answer: He did not perform enough trials to compare the theoretical and experimental probabilities.
Step-by-step explanation:
He only gave two entries for the experimental probability.He would need atleast four or three.
Hope this helped you!
An art teacher has 28 students in her first-period class and 24 students in her second-period class. If almost 30% of the students in these classes are boys, about how many boys are in her first two classes?
please helppppppppppppppppppppppppppppppp
Answers
Answer:
.30 × 52 = 15.6 = 16 boys in the two classes
Please help! :( Was sick for a week now dying.
The tree diagram below shows all of the possible outcomes for flipping three coins.
A tree diagram has outcomes (H, H, H), (H, H, T), (H, T, H), (H, T, T), (T, H, H), (T, H, T), (T, T, H), (T, T, T).
What is the probability of one of the coins landing on tails and two of them landing on heads?
1/4
3/8
1/2 This is not correct I know because I got it wrong onn edge.
3/4
Answers
Reason: Amount of them landing on one tails and two heads / Whole amount of the tree diagram , My explanation sucks sorry
There’s 8 possibilities and 3 of them have two H and one T (HHT, THH, and HTH)
ayo 30 pts
What is the distance between the two points shown below?
6 units
0 units
4 units
8 units
Answers
Answer:
The distance between these two points is 4 units.
Answer:
4 units
Step-by-step explanation:
There are only 4 units of distance since in the y-axis, the first point is found on 0 and the second point is found on 4.
IM SORRY BUT PLS HELPPP!!!
Answers
Answer:
Step-by-step explanation:
Only 5 is a factor because only 5 can go into 5
1/3
Answer:
1/3
Step-by-step explanation:
5 is the only factor out of the three and there is 3 cards total so it would be 1/3
How do you rewrite fractional exponents?
A as a square root
B as a negative
C reciproacate
Answers
Answer:
A as a square root
Step-by-Step:
Fractional exponents are roots and nothing else.
If Jason ran 1.8 miles and Josh ran
3,200 yards, who ran the farthest?
(1 mile = 5,280 feet)
Answers
Answer: Josh ran the farthest.
Step-by-step explanation:
1 mile = 5,280 feet
1.8 miles = 1.8 x 5,280 feet = 9,504 feet
1 yard = 3 feet
9,504 feet = 9,504 / 3 yards = 3,168 yards
So Jason ran 3,168 yards.
Since 3,200 yards is greater than 3,168 yards, Josh ran the farthest.
Answer:
Josh ran further
Step-by-step explanation:
I converted Josh's yards to miles.
[tex]\frac{3200yards}{1 }[/tex] · [tex]\frac{3 feet}{1 yard}[/tex] · [tex]\frac{1 mile}{5280feet}[/tex] cancel out the words that you see on the top and on the bottom
[tex]\frac{3200}{1}[/tex] · [tex]\frac{3}{1}[/tex] [tex]\frac{1mile}{5280}[/tex] Now simplify by multiplying
[tex]\frac{9600 miles}{5280}[/tex] = 1.8181... This is a repeating number
1.8181... is larger than 1.8
Helping in the name of Jesus.
Determine the line of reflection.
Reflection across x = 4
Reflection across y = 4
Reflection across the x-axis
Reflection across the y-axis
Answers
Answer:
The correct answer:
Reflexion across x = 4
Answer:
The correct answer:
Reflexion across x = 4
George is visiting Gettysburg, Pennsylvania. He would like to take a taxi around town to see all the old buildings and various landmarks. The local taxi has an initial charge of $2.50 and then a fee of $0.85 per mile. He has twenty dollars to spend on this taxi ride. Write an expression in terms of m that represents the maximum miles he will be able to travel in the taxi.
Answers
Answer: is this all the information we have?
Step-by-step explanation:
Answer:
2.5 + 0.85m = 20
Step-by-step explanation:
let m be the total miles travelled by george
initial payment of 2.5 dollars is fixed
he would need to pay 0.85 dollars for every mile
HELP PLS 60 POINTS
A scatter plot is shown on the coordinate plane. scatter plot with points plotted at 1 comma 7, 1 comma 9, 2 comma 5, 3 comma 6, 3 comma 7, 5 comma 7, 6 comma 5, 7 comma 3, 9 comma 1, and 10 comma 1 Which two points would a line of fit go through to best fit the data? (3, 6) and (7, 3) (3, 7) and (9, 1) (1, 9) and (5, 7) (1, 7) and (2, 5)
Answers
Pοints (1, 9) and (10, 1) wοuld be a line οf fit.
What is a scatter plοt?
A scatter plοt is a graph that displays values fοr twο variables as οrdered pairs οf data pοints, with οne variable οn the hοrizοntal axis (x-axis) and the οther variable οn the vertical axis (y-axis).
Tο determine which twο pοints a line οf fit wοuld gο thrοugh tο best fit the data in a scatter plοt, we need tο lοοk fοr the pοints that are clοsest tο the general trend οr directiοn οf the pοints. In this scatter plοt, it appears that the general trend is a dοwnward slοping line.
The twο pοints that wοuld best fit this trend are (1, 9) and (10, 1), which are lοcated at the twο ends οf the scatter plοt and appear tο be the farthest frοm the general trend. Therefοre, the answer is:
(1, 9) and (10, 1)
Hence, pοints (1, 9) and (10, 1) wοuld be a line οf fit.
To learn more about the scatter plot, visit:
brainly.com/question/29231735
#SPJ1
please help i would really appreciate it
Answers
Answer:
The length of the missing side is 21 cm.
Step-by-step explanation:
[tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]
[tex]a^{2}[/tex] + [tex]28^{2}[/tex] = [tex]35^{2}[/tex]
[tex]a^{2}[/tex] + 784 = 1225
[tex]a^{2}[/tex] + 784 - 784 = 1225 - 784
[tex]a^{2}[/tex] = 441
[tex]\sqrt{a^{2} }[/tex] = [tex]\sqrt{441}[/tex]
a = 21
Helping in the name of Jesus.
8th grade math i mark as brainliest
Answers
Answer:
0.083 or 8.3%
Step-by-step explanation:
Since there are initially four cards, each card has a 25% (or 1/4) chance of being chosen. So the 8 card would have a 1/4 chance of being chosen.
Since the first card was chosen and not put back into the deck, the percent chance of each chosen card changes from 25% to about 33.3% (or 1/3) chance of being chosen. So the 8 card would now have a 1/3 chance of being chosen.
Since the question is asking what the percentage of choosing an 8 twice without replacing it is, you would multiply each of the percent chances that 8 card has to be chosen. In this case, multiply 1/4 and 1/3
This will result in about 0.083. To change to a percentage, multiply by 100 and the answer will end up at 8.3%.
Answer: 0%
Step-by-step explanation:
If you pick a 8 the first time, and you don't put it back, then there is no chance to get a 8 the second time. However, fi you pick a number other than 8 the first time, and pick 8 the second time, you didn't get 8 both times. Hope this helps!
FIRST ANSWER=BRAINLIEST ANSWER :)))))
Answers
First you need to draw in a diagonal across the "floor" of the room connecting 2 vertices. You should draw the diagonal so that it's going in the same direction as the spider's thread; the diagonal is drawn in the wrong way if it intersects across the spider's thread.
Then you need to mark in the measures. The figures that are parallel to each other are congruent, so they have equal measures. For example, the rectangle that is parallel to the 6 by 8 one has the same measures as that one. Also, all of the walls of the room are rectangles. That means that the opposite sides of each rectangle have equal measures.
Because the diagonal divides the rectangle into 2 right triangles, you can then use the Pythagorean theorem to find the length of the diagonal that you drew in. (12 squared + 8 squared = length of the diagonal squared, and solving gives you the length of the diagonal as the square root of 208)
Finally, you can see that there is another right triangle formed with the diagonal that includes the spider's thread. With the length of the diagonal and the length of 6 ft, you can use the Pythagorean theorem to find the length of the spider's thread. (6 squared + the square root of 208 squared = length of the thread squared) The length of the spider's thread is the square root of 244, which is 15.6 ft rounded to the tenth's place.
Evelyn deposited $23,750 in a savings account that earns 5.3% simple interest. Evelyn has not made any deposits or withdrawals since she opened the account. Approximately how many years have passed since Evelyn opened the account if her latest balance is $28,785?
Answers
What is the value of the expression 4x − y when x = 3 and y = 1? (5 points) 1 6 11 12
Answers
Answer:
Option 11 is correct.
Step-by-step explanation:
The values of the expression 4x − y when x = 3 and y = 1 will be 11.
Answer:11
Step-by-step explanation: 4*3-1=12-1=11
Jackie plans to plans to paint the finger nails of 8 friends. She finishes painting 4 of her friends nails. If each friend has ten nails to paint, how many nailes does Jackie still need to paint? Write and solve an equation to show how many more nails Jackie needs to paint.
Answers
Answer:40
Step-by-step explanation:
each friend has 10 nails and there is a total of 8, 8 x 10 80 - 40 = 40 in other words Jackie has to paint 40 finger nails
If Jackie has already painted 4 friends' nails, she has painted 4 x 10 = 40 nails.
To find out how many more nails Jackie needs to paint, we can subtract the number of nails she has already painted from the total number of nails she needs to paint:
80 - 40 = 40
So Jackie still needs to paint 40 nails.
PLS PLS HELPPP!!! LOOK AT IMAGEEE
Answers
Answer:
50%
Step-by-step explanation:
Three out of the six choices are odd. (1,2,3,4,5,6)
[tex]\frac{3}{6}[/tex] = .5 Multiply .5 buy 100% to get the percentage.
To multiply by 100% move the decimal two places to the right
50%
Helping in the name of Jesus.
Answer: 50%
Step-by-step explanation:
There are 3 odd numbers on a 6 sided dice (1,3 and5)
so you have a 3 out of 6 chance of rolling odd
P(odd)=3/6
convert to decimal first
P(odd)=.5 then move decimal over 2 times to the right to convert to %
P(odd)=50%
Please help me out. Ik its late but whoevers up rn please help me out this is needed by 12pm tomorrow. Thank You!!
Answers
Answer:
B 30°
Step-by-step explanation:
come now.
the sum of all angles around one point on one side of a line is 180°.
why ?
because any line with a point can be seen as a diameter of a circle with that point as center.
and every side of the line represents then a half-circle.
and a half-circle stands for 360/2 = 180°.
so,
180 = (2x + 70) + (x - 10) = 2x + 70 + x - 10 = 3x + 60
120 = 3x
x = 40
2x + 70 = 2×40 + 70 = 80 + 70 = 150°
x - 10 = 40 - 10 = 30°
180 = Q + (2x + 70) = Q + 150
30° = Q
HELPP PLEASEEEE!! LOOK AT THE IMAGE
Answers
Answer:
Step-by-step explanation:
Factors(7 and 10) are numbers that multiply to make a number(70) How many of those numbers are a factor of 7. Only 7 can go into 70 evenly
Which is only 1 out of 4 of the numbers
So your fraction is
p(factor of 70) 1/4.
The last two questions on a quiz were a
true or false question and a multiple choice
question with 4 answer choices. Each ques-
tion had only one right answer. What is the
probability of guessing ______
(a) both questions correctly
(b) both questions incorrectly
(c) both correctly from the remaining
options, knowing that a and b on the
multiple choice were incorrect
Write the probability as a reduced fraction, decimal rounded to the hundreds place, and a whole percent
Answers
Answer:
(a) The probability of guessing both questions correctly is (1/2) * (1/4) = 1/8, or 0.125, or 12.5%.
(b) The probability of guessing both questions incorrectly is (1/2) * (3/4) = 3/8, or 0.375, or 37.5%.
(c) The probability of guessing both questions correctly from the remaining options is (1/3) * (1/3) = 1/9, or approximately 0.111, or 11.1%.
Hope this helps!
Answer:
(a) The probability of guessing both questions correctly is (1/2) * (1/4) = 1/8, or 0.125, or 12.5%.
(b) The probability of guessing both questions incorrectly is (1/2) * (3/4) = 3/8, or 0.375, or 37.5%.
(c) The probability of guessing both questions correctly from the remaining options is (1/3) * (1/3) = 1/9, or approximately 0.111, or 11.1%.
Hope this helps!
HELP!!! LOOK AT IMAGE
Answers
Answer: 100%
Step-by-step explanation:
ANSWER QUICK PLS
look at the trapezium below, work out the size of angle
angle tuv
angle vwt
give your answer in degrees
Answers
Answer:
Step-by-step explanation:
The value of angle ADC is 157.4°
How do you find angle In a trapezium?
The sum of angles in a trapezoid-like other quadrilateral is 360°. So in a trapezoid ABCD, ∠A+∠B+∠C+∠D = 360°. Two angles on the same side are supplementary, that is the sum of the angles of two adjacent sides is equal to 180°. The length of the mid-segment is equal to 1/2 the sum of the bases.
Therefore angle A + angle D = 180
using trigonometry,
cos A = 12/13
A = cos^-1(0.923)
A = 22.63°
therefore angle D = 180-22.63
= 157.4° ( 1 dp)
learn more about angle in a trapezium from
brainly.com/question/30179943
Answer:
see below
Step-by-step explanation:
TUV = 180-107 = 73
VWT = 180-58 = 22
Answer my recent unanswered pre-algebra questions for brainliest!
Answers
Answer:
Only if you award me brainliest
Ok I will answer your recent unanswered pre-algebra questions.
But one thing…. Marking my answer as the BRAINLIEST. Is a must!
A car dealership has various combinations of vehicles in their car lot, all of which have an equally likely chance of being selected.
Use the list of options below to determine the probability of each vehicle being selected. The problem is based on independent events.
Answers
Answer:
Step-by-step explanation:
The probabilities of each of the following combination in question is 1/8, 1/6, 1/8, and 1/12 respectively.
The car dealership offers combinations of car parameters. The possible values of each car parameter are :
Vehicle = [Sedan, Suv, Truck]
Exterior color = [Red, Blue, Silver, Black]
Interior Material = [Leather, Cloth]
1. The probability of selecting a Silver Vehicle with a Cloth Interior is 1/8.
P(Silver, Cloth) = P(Exterior = Silver, Interior=Cloth)
= P(Exterior = Silver) * P(Interior=Cloth)
= (1/Total exterior options) * (1/Total interior options)
2. The probability of selecting an SUV or Truck with a Red or Black color and Cloth Interior is 1/6.
P(SUV|Truck, Red|Black, Cloth)
= P(Vehicle=Suv|Truck, Exterior = Red|Black, Interior=Cloth)
= P(Vehicle=Suv|Truck) * P(Exterior = Red|Black) * P(Interior=Cloth)
= (2/Total vehicle options) * (2/Total exterior options) * (1/Total interior options)
3. The probability of selecting a Sedan of a non-Red color and Cloth Interior is 1/8.
P(Sedan, !Red, Cloth)
= P(Vehicle=Sedan, Exterior != Red, Interior=Cloth)
= P(Vehicle=Sedan) * (1- P(Exterior = Red)) * P(Interior=Cloth)
4. The probability of selecting a Truck of a Blue or Black color and Leather Interior is 1/12.
P(Truck, Blue|Black, Leather)
= P(Vehicle=Truck, ExteriorBlue|Black, Interior=Leather)
= P(Vehicle=Truck) * P(Exterior = Blue|Black)) * P(Interior=Leather)
PLEASE HELP QUICK!!!
In which step does the first mistake appear
(23.8 / 2 + 12) + 14.5 / 2
step 1 (23.8 / 14) + 14.5 /
2 step 2 1.7 + 14.5 / 2
step 3 1.7 + 7.25
step 4 8.95
Answers
Answer:
The mistake appears in step 1 where 23.8 is divided by 14 instead of 2.
The correct first step should be: (23.8 / 2) + 12 + (14.5 / 2)
Hope this helps!
Answer:
A
Step-by-step explanation:
The error arises in the equation "(23.8 / 2 + 12)", where the division is incomplete. A slick fix is to rephrase it as "(23.8 / 2) + 12" to ensure accurate calculation, with the division taking precedence over addition, resulting in a cooler computation!
(Comparing Data MC)
The data given represents the height of basketball players, in inches, on two different girls' teams.
Compare the data and use the correct measure of center to determine which team typically has the tallest players. Explain your answer.
Group of answer choices
The Allstars, with a mean of about 67.1 inches
The Champs, with a mean of about 66.4 inches
The Allstars, with a median of about 68 inches
The Champs, with a median of about 67 inches
The Data:
Answers
Answer:The Allstars, with 67.1333...
Help please if u can explain why that would also help but u don’t have to
Answers
Answer:
D. It's like multiplying a fraction by -1: it multiplies only the numerator
It’s B because multiplying any number by one equals the other number so therefore, 6 x -1 (meaning the negative sign before the parentheses) equals -6 and -7 x -1 equals 7 because a negative plus a negative equals a positive.
Integer rules are key here!!
Hope this helped.
does anyone know how to find the length and the width with only the volume(250) and a height(8)?
Answers
Answer: lxWxh= v
Step-by-step explanation:
To find the length of a rectangular prism, there should be two missing sides. Since we don't have length or width, you find what times 8 times another number equals 250.