Answer:
Students in 7th grade took a standardized math test that they also had taken in 5th grade. The results are shown on the dot plot, with the most recent data shown first.
Find and compare the means to the nearest tenth.
7th-grade mean:
✔ 16
5th-grade mean:
✔ 13.4
What is the relationship between the means?
✔ The 7th-grade mean is about 2.5 points higher.
Step-by-step explanation:
Mean for 7th Grade Students is: 16
Mean for 5th Grade Students is: 13.4
Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade students.
What is the Mean of a Data Distribution?The mean is the average of the data set, that is the sum of each data value divided by the number of data points.
Given that, 7th Grade Students in 7th grade took a standardized math test that they also had taken in 5th grade.
Mean for 7th Grade Students:
Mean = [10 + 11 + (2 × 12) + 13 + 14 + (2 × 15) + (3 × 16) + (3 × 17) + (2 × 18) + (2 × 19) + (3 × 20)]/21
Mean = 335/21
Mean = 15.95 = 16
Mean for 5th Grade Students:
Mean = [8 + (2 × 9) + (2 × 10) + (2 × 11) + (2 × 12) + (2 × 13) + 14 + (3 × 15) + (2 × 16) + 17 (2 × 18) + 19
Mean = 281/21
Mean = 13.38 = 13.4
The difference between their means = 16 - 13.4 = 2.6.
Hence, Mean for 7th Grade Students is: 16
Mean for 5th Grade Students is: 13.4
Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade students.
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It takes about 20 hours to drive from Columbus to Houston which is about 1180 miles. What is the unit rate?
Miles per hour
Answer:
it would be 59 miles per hour
Step-by-step explanation:
[tex]1180/20=59[/tex]
Bella has $26.00 to spend at a craft store. She buys fabric that costs $18.62. She also wants to buy knitting needles for $7.32, silk flowers for $7.38 or oil paints for $8.48. Use the equation $18.62 + c = $26.00, where c is the item cost, to find the most expensive item Bella can buy. Show your work and explain how you found your answer. Be sure to write your answer in a complete sentence.
A circular swimming pool has a diameter of 30 feet and a depth of 5 feet. Which equation can be used to find V, the volume of the swimming pool, in cubic feet?
Answer:i believe tht the equasion you use would b area aka LxW but instead of ft use cube
Step-by-step explanation:
will give brainiest to the person give a good answer
Answer:
1=7
2=4
3= -12
4=5
5= -1
6= -1
7= -7
8=4
Drag the tiles to the boxes to form correct pairs.
Match the pairs of equivalent expressions.
(-14 + 36) – (1 + 2/6)
46 + 1
(5 + 2) + (20 + 2)
86-15
(36 – 3) – (8 + 60)
- - 11
(-10+6)+(76-5)
-15 - 30
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Answer:
Step-by-step explanation:
The correct pairs of equivalent expressions are given below.
⇒ (5 + 2b)+(2b + 3/2) = 4b + 13/2
⇒ (-10 + b)+(7b - 5) = 8b - 15
⇒ (-14 + 3/2b)-(1 + 8/2b) = -15 - 5/2b
⇒ (7/2b - 3)-(8 + 6b) => -5/2b - 11
What is the expression?An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
We have given that,
All the expression are,
(5 + 2b)+(2b + 3/2)
(-14 + 3/2b)-(1 + 8/2b)
(-10 + b)+(7b -5)
(7/2b - 3)-(8 + 6b)
Now, We have to determine the equivalent expression as;
⇒ (5 + 2b)+(2b + 3/2) = 4b + 13/2
⇒ (-10 + b)+(7b - 5) = 8b - 15
⇒ (-14 + 3/2b)-(1 + 8/2b) = -15 - 5/2b
⇒ (7/2b - 3)-(8 + 6b) => -5/2b - 11
Thus, The correct pairs of equivalent expressions are given below.
⇒ (5 + 2b)+(2b + 3/2) = 4b + 13/2
⇒ (-10 + b)+(7b - 5) = 8b - 15
⇒ (-14 + 3/2b)-(1 + 8/2b) = -15 - 5/2b
⇒ (7/2b - 3)-(8 + 6b) => -5/2b - 11
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joey ate 1/2 of the pie. molly ate 1/2 of what was left. lola ate 1/2 of what was lefet after molly finished. what fractional part of the pie did molly eat? what fractional part of the pie is left for another person?
3 to the second power x 3 x 3 x 3=
Simplified into exponential form
Answer:
27
Step-by-step explanation:
Sorry this is the last question...
See picture for question
awser :5.4n 5 aka #3
------------------------------------------
Answer:
5.4n
Step-by-step explanation:
4n + 3.5 + 2.1n
4n+ 3.5 = 7.5n
7.5n - -2.1= 5.4n
Find the total number of possible outcomes of one place and one day.
solve -2x<8 plzz :) have a good day
Answer:
The answer is -4
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequlity form: x > -4
Interval Notation : (-4, infinity)
Hoped this helped!
Two different clothing detergents are on sale at Shop Mart. Clean White is priced at $5.76 for 32 fluid ounces. Clean Bright is priced at $7.20 for 48 fluid ounces. Which set of ratio tables is correct?
Answer:
$17.35
Step-by-step explanation:
Answer:
$17.35
Step-by-step explanation:
Can the perimeter be larger than the area?
Answer:
YES
Step-by-step explanation:
SOMETIMES
Answer:
The area can be smaller or larger than the perimeter depending on the shape.
Step by Step Explanation:
You can divide your diagram into one-unit (feet, cm, miles) segments vertically and horizontally if you want to visualize how the area measurement will look. Multiply the length of your rectangle by the width.
PLEASE HELP ASAP RIGHT NOW
the Miller family must drive 8 hours to reach their destination. They drive 3 2/3 hours before stopping for the first time. Then they drive 2 3/5 hours before stopping again. How many more hours will it take the Miller family to reach their destination? Use paper to show your work. Enter your answer in the box.
It will take the Miller family ______ more hours to reach their destination.
IN FRACTION ONLY THANK YOU
The number of hours it would take Miller's family to reach their destination is [tex]2\frac{2}{3}[/tex] hours.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, The Miller family must drive 8 hours to reach their destination.
The first time they stopped after driving [tex]2\frac{2}{3}[/tex] hours and again for the second time they stopped after driving [tex]2\frac{2}{3}[/tex] hours.
Therefore the total hours they drive is,
= [tex](2\frac{2}{3} + 2\frac{2}{3})[/tex] hours.
= (8/3 + 8/3) hours.
= 16/3 hours.
= [tex]5\frac{1}{3}[/tex] hours.
So, The number of hours they still need to drive is,
= (8 - 16/3) hours.
= (24 - 16)/3 hours.
= 8/3 hours.
= [tex]2\frac{2}{3}[/tex] hours.
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i need some help plss with this math
Answer:
0
Step-by-step explanation:
If you look at -3 the other end is 0 so the answer is 0.
Answer:
y=3
Step-by-step explanation:
the equation is 3x + 2y = -6, so we can plug in the x value -4.
doing this we get -12 + 2y = -6
now we just solve the equation for y.
2y=-6+12
2y=6
y=3
please answer right ill give brainliest
Answer:
A:24 photos per day
Step-by-step explanation:
your welcome
Answer:
sorry i was on the phone answer is 44
Step-by-step explanation:
Please help, will give brainliest. Thank you
Answer:
92.6 times
Step-by-step explanation:
Answer:
If I understand what you are asking correctly all you would have to do is divide the 1 mile by how far around the path is. The answer to this is 92 hope this helps.
Step-by-step explanation:
If you want a decimal answer then its 92.6
Jada walked 8 miles to school and then a quarter of that distance again. How far did Jada walk? *
A. 2 miles
B. 10 miles
C. 8 miles
D. 12 miles
Answer
A . 2
Step-by-step explanation:
A quarter =0.25 miles
jada walked 8 miles to school
0.25
x 8
---------
2
Find the commission.
Answer:
63.9
Step-by-step explanation:
Convert 9% to a decimal: 0.09
710×.09=63.9
Please give me brainliest
I will mark best answer!!
Answer: 10
Step-by-step explanation:
8v - 4(v + 8 ) = 8
Distribute
8v - 4v - 32 = 8
Combine like terms
4v - 32 = 8
Add 32 to both sides
4v = 40
Divide by 4 on both sides
V = 10
A pan balance has 3 cubes on one pan and 11 cubes on the other pan. Lucy thinks she should add 7, 8, 9, or 10 cubes to make the pans balance. How can you use the equation 3 + c = 11 to find the number of cubes Lucy should add?
Answer:
8
Step-by-step explanation:
11-3=c
c=8
The number of cubes Lucy should add is 8.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Given that, a pan balance has 3 cubes on one pan and 11 cubes on the other pan.
The equation to represent the situation is 3+c=11
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
Now, c=11-3
c=8
Therefore, the number of cubes Lucy should add is 8.
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What is the area of the top of the water buoy as shown in the figure?
84.78 square in.
37.68 square in.
113.04 square in.
28.26 square in.
Answer:
The answer is 28.26 square in
Step-by-step explanation:
As, the diameter if the top = 6 inches
And the area of a circle = 3.14(pi) x radius^2
So here radius = Diameter /2 = 6/2 = 3
So radius = 3 inches
So area = 3.14 x (3)^2
= 3.14 x 9
= 28.26 square in
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Please help me also explain your answer so I can get better at this thank you :)
Decide whether the question is looking for the part, the percent, or the whole.
15% of what number is 132?
The question is looking for the [ part, percent, or whole]
Graph -3.5 and -1.5 on the number line.
Answer:
ok i kow this hold on
Step-by-step explanation:
Which sequence is represented by = 10 − 29 where x represents the term number and y represents the term?
Group of answer choices
1, -28, -57, -86, …
-29, -19, -9, 1, …
-19, -9, 1, 11, …
10, -19, -48, -77, …
Write each fraction as a percent. 2/10, /4, /20
Answer:
2/10 is 20% 4/20 should also be 20 %
Step-by-step explanation:
20% and .004% and .2% is the answer
Help me plz or dont its whatever
Answer:
i think its 7
Step-by-step explanation:
28 miles per 4 hours, so you divide them both by 4 and get 28 divided 4
and 4 divided by 4. so its 7/1 which just equals 7. please correct me if im wrong good luck.
Hey there!
In order to solve for this particular question that you have asked.. we can just simply divide 28 from 4
Equation: 28 / 4
28 ÷ 4 / 4 ÷ 4
28 ÷ 4 = 7
4 ÷ 4 = 1
New equation: 7 / 1
Simply the newer equation and you have your answer
7 ÷ 1 = 7 / 1 ➡️ 7
Answer: 7 mph. (Miles Per Hour) ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Abdul bought a loaf of bread for $1.59 and a package of cheese for $2.69. How much did Abdul spend?
Answer:
$4.28
Step-by-step explanation:
add.
$2.69 + $1.59 = $4.28
hope it helped.
Answer:
He spent 1.59 + 2.69 which is equal to $4.28, which is your answer.
Step-by-step explanation:
Hope this helps!! <3
Dont forget to give brainliest if this helped!! :)
What is the greatest common factor (GCF) of 12 and 54?
Answer:
The greatest common factor of 12 and 54 is 6
Step-by-step explanation: