Question

I need to know the answer for the picture

Answer 1

2

Explanation:

Given:

8 a

------- = ------ Find the value of a that makes this equation true.

28 7

Cross multiplying, we get 28a = 56, and so a works out to 2.

Check: Does 8/28 = 2/7? Yes.

Answer 2

a = 2

Explanation:

We can use cross products to solve

8 a

----- = -------

28 7

8*7 = 28*a

Divide each side by 28

56/28 = 28a/28

2 =a