PLEASE HELP ME!!!!!!! I HAVE EITHER 1 OR 2 ATTEMPTS TO GET IT RIGHT!!

Mathematics

1 answer:

Zinaida [17]3 years ago

7 0

You just have to make equal fractions, so if c = 4 that means $\frac{a}{5}$ = $\frac{4}{7}$ so cross multiply to get 7a = 20; divide both sides by 7 to get a = 2.86 and do the same with the other ones

If c = 11 then $\frac{a}{5}$ = $\frac{11}{7}$ cross multiply to get 7a = 55; divide both sides by 7 to get a = 7.86 and so on

The answer is true to the other question

Hope this helps :)

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Half of Ethan string is equal to 2/3 of Kayla stream the total length of the string is 10 feet how much longer is Ethan string K

Verizon [17]

Answer:

10/7 feet

Step-by-step explanation:

Let e = Ethan

k = Kayla

The following equations can de derived from the equation :

1/2 e = 2/3k

multiply both sides of the equation by 2

e = 4/3k --- 1

e + k = 10 --- 2

Substitute for e in equation 2

4/3k + k = 10

7/3k = 10

multiply both sides of the equation by 3/7

k = 30/7

Substitute for k in equation 1

e = (4/3) x 30/7 = 40/7

difference in length = 40/7 - 30/7 = 10/7

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3 years ago

What is 0 + y when y = -11

Mashutka [201]

when y = -11, 0 + y is equal to -11.

the question is asking us to add 0 to the given value of y. the given value of y is -11, so place -11 into 0 + y and you get 0 + -11. since you are adding zero, you are making no changes to the y value, so it stays at -11.

<em>hope this helps and have a great day!</em>

3 0

3 years ago

Read 2 more answers

Kevin jogged 2 1/2 miles in 1/3 of an hour. What was his average rate in speed in miles per hour? Show your work.

Arlecino [84]

Answer:

7.5 miles per hour

Step-by-step explanation:

Average Speed = Total Distance/Total Time

$\frac{2 \frac{1}{2} }{\frac{1}{3} }$ = 7.5 miles/hour