if f =28 when a = 7 find f when a is 10 (direct proportion) ​

Answers

Answer 1

Answer:

f=40

Step-by-step explanation:

f=28, a=7

[tex]f \infty a \\ f = ka \\28 = k(7) \\ 28 = 7k \\ \frac{28}{7} = \frac{7k}{7} \\ 4 = k \\ k = 4 \\ f = 4a \\ a = 10 \\ f = 4(10) \\ f = 40[/tex]

Hope that this is helpful.

Have a nice day.

Answer 2
F=40
Don’t really know how to explain it tho

Related Questions

To win a trivia game, Nevan must score 90 points. Each correct
answer is worth 1 3/4 points, and each incorrect answer is worth
- 1/4 points. If he gets 58 questions correct and 22 questions incorrect, does Nevan win? How many points does he score?

Answers

Answer:

Nevan does not win

He scored 74 points

Step-by-step explanation:

First, find how many points he gets from 58 correct questions:

Multiply 1 3/4 by 58:

58(1.75)

= 101.5

Then, find how many points he loses from 22 incorrect questions:

Multiply -1 1/4 by 22:

22(-1.25)

= -27.5

Then, subtract 27.5 from 101.5 to find how many points he scored:

101.5 - 27.5

= 74

Since he needed 90 points to win, he did not win because he only got 74.

Step-by-step explanation:

2 candy bars cost $0.98. At this rate, how much do 5 candy bars cost? The total cost for five candy bars is?

Answers

Answer:

$2.45

Step-by-step explanation:

First divide the cost by number of items. you shall get $0.49

Now multiply the cost of 1 candy bar into 5 and you shall get $2.45.

The Flintstone and Rubble families went out to dinner. The Flintstones purchased 3 cheeseburgers and 2 hotdogs for $19. The Rubbles purchased 2 cheeseburgers and 1
hotdog for $12.
Determine the total cost of buying ONE cheeseburger and ONE hotdog to select the True statement:
O A. 1 cheeseburger + 1 hotdogs4
B. 1 cheeseburger + 1 hotdog = $5
OC. 1 cheeseburger + 1 hotdog = $6
OD 1 cheeseburger + 1 hotdog = 57

Answers

Answer:

C

Step-by-step explanation:

Susan and Jim both babysit. Susan earns $15 for 2 hours and $30 for 4 hours. Jim’s charges are calculated using the equation t=7h+10 (t is the total and h is the hours) which statement is true


A.) Jim charges $7.00/hour, which is higher than Susan’s hourly rate


B.) Jim charges $10.00/hour, which is higher than Susan’s hourly rate


C.) Susan charges $7.00, which is equal to Jim’s hourly rate


D.) Susan charges $7.50, which is higher than Jim’s hourly rate


Please answer as soon a possible

Answers

Answer:

D.

Step-by-step explanation:

7h is the amount of money Jim makes per hour. You can find the amount of money Susan makes by dividing the amount she made to the hours:

15/2 = 7.50

Susan charges $7.50, which is higher than Jim's hourly rate. which is the correct answer would be a statement (D)

What is the equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

To find the hourly rate for Jim, you can plug in different values for h (the number of hours) in the equation t = 7h + 10 and solve for t (the total). For example, if h = 1, then t = 7(1) + 10 = 17. This means that if Jim babysits for 1 hour, he charges $17.

If you divide the total amount that Jim charges by the number of hours he works, you get his hourly rate. In this case, the hourly rate is t/h = 17/1 = $17/hour.

To find Susan's hourly rate, you can divide the total amount that she charges by the number of hours she works. For example, if Susan babysits for 2 hours, she charges $15, so her hourly rate is $15/2 = $7.50/hour. If Susan babysits for 4 hours, she charges $30, so her hourly rate is $30/4 = $7.50/hour.

Since Susan charges $7.50/hour, which is higher than Jim's hourly rate of $17/hour, the correct statement is D.) Susan charges $7.50, which is higher than Jim's hourly rate.

Learn more about the equations here:

brainly.com/question/10413253

#SPJ2

BRAINLIST!!!!!
Lisa glued two pieces of wood together to make the letter L in her art class. She plans to paint all sides of it purple, including the base.

The longer piece of wood has dimensions of 2 inches by 2 inches by 6 inches. The shorter piece of wood has dimensions of 5 inches by 2 inches by 2 inches. How many square inches of purple paint will Lisa use to paint her letter L?

A.
74 square inches
B.
96 square inches
C.
104 square inches
D.
100 square inches

Answers

Answer:

The 52 square inches of purple paint will Lisa use to paint her letter L, If she plans to paint all sides of it purple, including the base, the longer piece of wood has dimensions of 1 inch by 1 inch by 9 inches and the shorter piece of wood has dimensions of 3 inches by 1 inch by 1 inch.

Step-by-step explanation: The given is, Lisa glued two pieces of wood together to make the letter L The longer piece of wood has dimensions of 1 inch by 1 inch by 9 inches.

Help me I HATE MATH!!!

Answers

Answer:

2, 3, ,6 ,9. (YOUR ANSWER)

All numbers listed below!

15282 ÷ 1 = 15282

15282 ÷ 2 = 7641

15282 ÷ 3 = 5094

15282 ÷ 6 = 2547

15282 ÷ 9 = 1698

15282 ÷ 18 = 849

15282 ÷ 27 = 566

15282 ÷ 54 = 283

15282 ÷ 283 = 54

15282 ÷ 566 = 27

15282 ÷ 849 = 18

15282 ÷ 1698 = 9

15282 ÷ 2547 = 6

15282 ÷ 5094 = 3

15282 ÷ 7641 = 2

15282 ÷ 15282 = 1

1, 2 , 3, 6, 9, those are the factors there is more but for the question above

How do i simplify this question?

Answers

16a5 b7
you just needed to multiply the numbers

b^(3) * b^(4) write without exponents

Answers

Answer:

(b×b×b)×(b×b×b×b)

Step-by-step explanation:

Writing the equation out is the only way to remove the exponents.

The answer would be (b*b*b) * (b*b*b*b)

On school days, Kiran walks to school. Here are the lengths of time, in minutes, for Kiran’s walks on 5 school days.

16 11 18 12 13
Create a dot plot to represent Kiran's data.

Add dots on the dot plot below to correctly display the data. To add dots, hover your cursor over the bottom of each column and drag up or down to set the appropriate number of dots.

Answers

Answer:

5

Step-by-step explanation:

Plz help it’s due tonight!!!

Answers

sorry

Step-by-step explanation:

After watching Donald Duck in Mathmagic Land, please type out three things that you learned from the video. Did you like the video? Why or why not? Please answer all parts to the question

Answers

Answer:

Hope this helps

Step-by-step explanation:

Mathmagic Land had taught me more about math that I never knew before. I learned that everything can be involved with math. It all starts at the Pythagoreans which were the Greek. An example of how math is used today, is by playing billiards.

In billiards, you have to have a good technique of how your going to hit the ball, (good angles,) and you have to have a precise calculation of the angle your going to hit it at.I also learned when you cut shapes like a sphere, it just makes more and more shapes.

This is what I learned watching the Mathmagic Land Video.

Yes,  Donald Duck in Mathmagic Land taught me alot of things I did not know before.

   

What is the rounded number when 4 872 is rounded to the nearest hundred?

Answers

Answer : 4900

(The answer is 4900, that’s what i got)

it has no picture just these

Answers

Answer:

angle OPN, angle PON, angle NOP, angle PNO

Step-by-step explanation:

Essentially, this simply asks what angles contain the line OP. If we draw the triagnle NOP (in that order starting at the top), we can see that all these angles include the line OP within their angles.

(note: Im not sure if it is asking for the line OP in that order. If so, it would only be angles 1 and 3, as those have OP in that order)

Does anyone know this answer????


Please and thank you

Answers

Answer:

cat is 6 pumpkin is 12 pot is 14 so 6+14-12=8

Step-by-step explanation:

I will mark brainliest when I’m able to !!

Answers

Answer:

It should be b

Step-by-step explanation:

I took this test

Answer: The answer would be A.

Step-by-step explanation:

The answer is a because when you do square root 60 on a caculator the answer is 4. So the answer would be A.

PLS HELP DUE IN 15-20 MINS!!

Answers

Dang dude good luck don’t fall under pressure you got this

A local business rents computer time for a $5 setup charge and $0.30 per minute the computer is used

Write an equation to represent the cost of using the computer for a given amount of
Us
time in minutes. Define your variables.

How much does 30 minutes of computer time cost?

Answers

Answer:

[tex]c = 0.3m + 5[/tex]

define the variables:

c is the cost and m is minutes

It costs $14

Step-by-step explanation:

[tex]c = 0.3m + 5[/tex]

To solve for cost substitute 30 in for m

[tex]c = 0.3(30) + 5[/tex]

multiply

[tex]c = 9 + 5[/tex]

add

[tex]c = 14[/tex]

(3√81)/(3√24)rationalize the dominator and simplify

Answers

The answer is 3 times squared root of 6 divided by 4

Answer:

3√6/4 or 1.84

Step-by-step explanation:

please explain btw it’s telling me to find the equation not the sum

Answers

Answer:

21+v=52

Step-by-step explanation:

Sum means the result of two numbers added together

what law would you use to simplify (2xy)^(2)

Answers

Answer:

(2xy)²

Step-by-step explanation:

please mark me as brainliest

For this graph, mark the statements that are true.

A. The range is the set of all real numbers.
7
B. The range is the set of all real numbers greater than or equal to
zero.
C. The domain is the set of all real numbers.

D. The domain is the set of all real numbers greater than or equal to
-2.

Answers

Answer:

B and C are true

Step-by-step explanation: range is y values the graph can have from 0 up

domain in x values the graph can have so all number in either direction left and right

Answer:

Step-by-step explanation: The answer is B and C because range is y and it is greater than 0 and domain is x and is go infinitely in both directions

Solve the equation. 2/3 -4c+7/2 = -9x+5/6

Answers

Answer:

The value of X is -2/3

Step-by-step explanation:

edge2021

4(5y-2) = 40

what is y?

Answers

Answer: 4(5y−2)=40

Divide both sides by 4.

5y−2=  

4

40

 

Divide 40 by 4 to get 10.

5y−2=10

Add 2 to both sides.

5y=10+2

Add 10 and 2 to get 12.

5y=12

Divide both sides by 5.

y= 12/5 or 2.4 please give brainliest

Step-by-step explanation:

Ashley has 6 books and 9 pencils. James has 12 pencils but is not able to determine the amount of books he has. The amount of books and pencils Ashley and James have are proportional.

How many books does James have? Show your work using mathematics.

Answers

Answer:

8 books

Step-by-step explanation:

First you need to find the ratio between 6 and 9

6/9 = 2/3

The ratio is 2/3

Now for James's case his denominator would be 12

x/12

To find the numerator you need to multiply the denominator by 2/3

12 * 2/3 = 8

There you go, the numerator is your answer

8 books and 12 pencils

Hope this helps :)

what is 10x10x20x10232 hurry i really need help

Answers

Answer:

20,464,000

Step-by-step explanation:

Answer: The answer is exactly 204,64000.

Step-by-step explanation: I hope I helped you out.

Answer this question please

Answers

Answer:

1/8362

Step-by-step explanation:

Student picked at random/Number of students

Miles and Ella have an equal number of stickers. They find ________more stickers which brings the total number of stickers to ________.How many stickers do Miles and Ella ha

Answers

They didn’t give you any numbers ??

Answer:

I just made my own numbers I put 6 in the first black and 18 in the next. the boxes just say what happened

Step-by-step explanation:

Miles and Ella have an equal number of stickers. They find ____6____more stickers which brings the total number of stickers to ____18____.How many stickers do Miles and Ella ha

MILES AND ELLAS STICKERS

FOUND STICKERS

TOTAL STICKERS

Write the word sentence as an equation. Then solve.
The quotient of a number x and −1.5 is 21

Answers

Answer:

X = 31.5

Step-by-step explanation:

X / 1.5 = 21

X = 21 * 1.5

Jim rented a truck for one day . There was a base fee of $18.95 and there was an additional charge of 74 cents for each mile driven . Jim had to pay $119.59 when he returned the truck . For how many miles did he drive the truck ??

Answers

Answer:

136 miles

Step-by-step explanation:

subtract $119.59 with how much he rented the truck for, which is $18.95 which makes his money at $100.64, then divide by how much each mile costed which was 74 cents

which gives you 136 so 136 miles.

Hope this helps :)

The length of the legs of a right triangle are 1 and 2 centimeters long. Find the length of
the hypotenuse.

Answers

Answer:

About 2.24 cm

Step-by-step explanation:

You can use Pythagoras theorem which states that;

[tex]a^2+b^2=c^2[/tex]

Plug all values in;

√[tex]1^2=1\\2^2=4\\1+4=5\\5=2.236067977[/tex]

I hope this helps:) Have a good day!!

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