Answer:
To find a relative frequency you need to divide the total number of x in the frequency to the total number. This can be represented as a fraction, decimal, or percent.
Step-by-step explanation:
For example,
The ball landed 3 times out of 40.
3/40 = 7.5%
Step-by-step explanation:
To find the relative frequencies, divide each frequency by the total number of students in the sample–in this case, 20. Relative frequencies can be written as fractions, percents, or decimals. Cumulative relative frequency is the accumulation of the previous relative frequencies.
Example: Your team has won 9 games from a total of 12 games played: the Frequency of winning is 9. the Relative Frequency of winning is 9/12 = 75%
Peralta and Amy worked last winter shovelling their neighbour's driveway. Amy earned $8 more than twice the amount earned by Peralta. If their earnings totalled $110, how much did Amy earn? Use an algebraic equation to solve this problem.
Answer:
$76
Step-by-step explanation:
Peralta and Amy worked last winter shovelling their neighbour's driveway.
Let the amount
Peralta earns = x
Amy earns = y
Amy earned $8 more than twice the amount earned by Peralta.
y = 2x + $8
y = 2x + 8
If their earnings totalled $110,
x + y = 110
x = 110 - y
We substitute 110 - y for x
Hence:
y = 2(110 - y) + 8
y = 220 - 2y + 8
Collect like terms
y + 2y = 220 + 8
3y = 228
y = 228/3
y = 76
Since, the amount Amy earns = y
Therefore, Amy earned $76
A line passes through the point (2, 10) and has a y-intercept of 4. What is the equation of the line?
Answer:
[tex]y=3x+4[/tex]
Step-by-step explanation:
Hi there!
What we need to know:
Linear equations are typically organized in slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept (the value of y when x is equal to 0)1) Determine the slope (m)
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex] where two points that the line passes through are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]
We're given the point (2,10) and the y-intercept of 4. Recall that the y-intercept occurs when x is equal to 0. This means that the y-intercept occurs at (0,4), giving us our second point.
Plug these points into the equation
[tex]=\frac{10-4}{2-0}\\=\frac{6}{2}\\=3[/tex]
Therefore, the slope of the line is 3. Plug this into [tex]y=mx+b[/tex]
[tex]y=3x+b[/tex]
2) Determine the y-intercept (b)
The y-intercept is given; it is 4. Plug this back into [tex]y=3x+b[/tex]
[tex]y=3x+4[/tex]
I hope this helps!
JELLO HELLO KNOCKS FOR HELP
Answer:
I think it's 9×30=270 (given
270-180 (sum of triangle
=90°
Someone help please want
asap
Answer:
3
Step-by-step explanation:
you are dividing by 3 each time
у varies inversely as x, and y = 45 when x = 7
Hey saw this man Turns 250 per on per week Plus a 10% commission all sales over 5000 in one week hey cells Toto 14,000 what were his earning that week A.$1,050 B.$1,150 C.$400 D.$2,150
Answer:
B.$1,150
Step-by-step explanation:
Given data
Weekly earning= $250
commission= 10%
Sales= $14000
Hence the expression for his total earnings per week is
y= 0.1x-250
x= sales
y= total earning
y=0.1*14000- 250
y= 1400-250
y= $1150
During the month of June, Addison kept track of the number of days she saw birds in her garden. She saw birds on 18 days of the month. What is the experimental probability that she will see birds in her garden on July 1? (There are 30 days in June) HURRYYYYY PLEASE
Answer:
3/5
Step-by-step explanation:
Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.
For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.
Experimental probability is based on the result of an experiment that has been carried out multiples times
experimental probability that she will see birds in her garden on July 1 = number of days she saw a bird in June / total number of days in June
= 18/30
To transform to the simplest form. divide both the numerator and the denominator by 6
essay on a trip with friends
Step-by-step explanation:
click the photo there is answrr
hey! i’ll give brainliest please help
Answer:
Symbol also in symbolizing something
Step-by-step explanation:
Allegory: is a form of narrative in which people, places and happenings have hidden or symbolic meaning. ... This is when the meaning, situation or action is one thing but means something different.
I need Answer Immediately!!!!!
Answer:
I think it is 1 Block every 3 minutes
Use the order of operations to find the value of the expression 2 + 3 x 16 - 2 x 21 - 3
Answer
5
Step-by-step explanation:
2+3x16-2x21-3
2+ (3x16)- ( 2x21) -3
2 + 48 - 42 -3
50 -42-3
8-3= 5
Answer:
=5
Step-by-step explanation:
2+3*16-2*21-3=
2+(3*16)-(2*21)-3=
2+(48)-(42)-3=
2+6-3=
8-3=
=5
Hope this helps
which answer is it to dis question?
Answer:
Step-by-step explanation:
(A) is the right
The wild things pet store has 4 birdcages with 6 canaries in eacg cage. The pet store also has a birdcage with i oarakeets. Which expression shows the number of birds in wild things pet store?
Answer:
(4 * 6) + 8
Step-by-step explanation:
The Wild Things Pet Store has 4 birdcages with 6 canaries in each cage. The pet store also has a birdcage with 8 parakeets. Which expression shows the number of birds in Wild Things Pet Store?
Solution:
Each birdcage contain 6 canaries, therefore since there is a total of 4 birdcages, the number of canaries in the 4 bird cages is given by:
Number of canaries = 4 birdcages * 6 canaries per birdcage
Also, there is one birdcage with 8 parakeets, hence the number of parakeets is:
Number of Parakeet = 1 birdcage * 8 parakeet per birdcage = 8 parakeet
The total number of birds in the Pet store = number of canaries + number of parakeet
number of birds in the Pet store = (4 * 6) + 8
Jessica's family took a 7-hour-and-27-minute trip on a train. They left at 7:00 a.m.
What time did Jessica's family arrive?
Aldo made 2 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for both necklaces was $10.20 If the beads cost $1.80 for each necklace, how much did each pendant cost?
pls help
Answer:
Solution given;
total cost for of the beads and pendants
both necklaces;$10.20
1 necklaces=;$10.20/2=$5.1
beads =cost $1.80
now
each pendant cost =total cost of 1 necklaces-beast cost
=$5.10-1.80
=$3.3
each pendant cost$3.3
Pleaseeeee helpppppppppppppppppppppppp
At the farmers market, you can buy 3 jars of honey for $12,6 jars of honey for $24,or 9 jars of honey for $36.what is the constant of proportionality for buying jars of honey ?
Answer:
12
Step-by-step explanation:
Triangle EFG is similar to triangle HIJ. Find the measure of side IJ. Round your answer to the nearest tenth if necessary.
Answer:
50.3
Step-by-step explanation:
11/7 = x/32
7x=352
50.28
50.3
On a quiz there are four multiple-choice questions worth 3 points each and two true/false questionsworth 1 point each . Each multiple-choice question has five possible choices . If a student randomlyguesses on each question , what is the expected value of the student's score on the test ?
Answer:
The expected value of the student's score on the test is 3.4.
Step-by-step explanation:
Multiple choice questions:
worth 3 points.
Five possible choices, one of which is correct. So the expected value of the student in each multiple choice question is:
[tex]m = 3\frac{1}{5} = 0.6[/tex]
True/false questions:
worth 1 point.
2 options, one of which is correct, so the expected value for each is:
[tex]t = 1\frac{1}{2} = 0.5[/tex]
What is the expected value of the student's score on the test ?
4 multiple choice, two true-false. So
[tex]E = 4m + 2f = 4(0.6) + 2(0.5) = 2.4 + 1 = 3.4[/tex]
The expected value of the student's score on the test is 3.4.
Which is the approximate perimeter for triangle PQR
A- 16
B- 17
C- 19
D- 21
Answer:
D
Step-by-step explanation:
It's an approximation
Find the corresponding time in the different countries in relation to the Philippine time. Choose the correct answer from the give choices.
help pls i neeeed help
Answer:
9/8 first 11/8 second and third is 75
Step-by-step explanation:
Sasha is collecting cans to recycle. When she collected 180 cans she knew she had reached 60% of her goal
Answer: 300 cans
Step-by-step explanation:
Questions wants to know what her goal was:
When Sasha collected 180 cans, she reached 60% of her goal. This means that 180 is 60% of the goal that she set for herself.
To find this goal, assume that it is denoted as x. In such a case, the goal would be expressed as:
180 = 60% * x
x = 180 / 60%
x = 300 cans
Find the solution by grouping
Answer:
Step-by-step explanation:
[tex]x^{5} -x^{4}-2x^{3} +2x^{2} =0\\\\x^{4} (x-1) -2x^{2} (x-1) =0\\\\(x^{4} -2x^{2} ) (x-1)=0\\\\ x^{2} (x^{2} -2)(x-1) =0[/tex]
solutions are
x² =0 so x=0
x²-2 = 0 so x= ±√2
x-1 =0 so x= 1
Use the equation below to find c, if a = 39 and b= 27.
c=180-a-b
c=0
X
5 ?
Answer:
the answer is 114
Step-by-step explanation:
graph the equation (x - 3)^2 + (y - 2)^2 = 25 and y = 6.
Answer:
x=6, x=0
Step-by-step explanation:
[tex](x - 3) ^{2}[/tex]+ [tex](y - 2) ^{2}[/tex]= 25
[tex](x - 3) ^{2}[/tex]+ [tex](6 - 2) ^{2}[/tex]= 25
x=6, x=0
16) One autumn morning the temperature went up from -4OC to 5OC a) By how many degrees did the temperature rise? During the afternoon, the temperature then fell by seven degrees from 5OC. b) What was the temperature at the end of the afternoon?
Answer:
Explain it a little more
Step-by-step explanation:
help ASAP PLEASE I need
Answer:
Step-by-step explanation:
A mutiple is found by taking a number and multiplying it by 1, 2, 3, 4, etc. This ensures us that that number will go into each of the numbers we find...or in other words, is a multiple. Choice A gives us 4, 8, and 16. Since 4 * 1 = 4, 4 is a multiple of 4; since 4 * 2 = 8, 4 is a multiple of 8; since 4 * 4 = 16, 4 is a multiple of 16.
Answer:
a) 4,8 and 16
Step-by-step explanation:
mmultiples of four are numbers that can be divided by four exactly
16/4 equals 4
8/4 equals 2
4/4 equals 1
Help pls I don’t get it
Answer:
post the entire question
At oceanside middle school 110 students tried out for the football team only 80% of the students that tryout make the team how many players are on the team
Step-by-step explanation:
answer is 22 students in the team
how do u get it?
you know it is 80% of the students went for try out so you do 100% - 80% give you 20% students the number of students in the team already. so you do 20 / 100 x 110 students which already in the whole school over 1 which would give it 22