Question

Could someone please answer for this section I will give 20 points for all of it

Answer 1

1) 2/5

2) 4/13

3) 1/8

4) 25/4 or 6 + 1/4

Explanation:

1) 5/2 * x = 1

x = 1 / (5/2)

x = 2/5

2) (3 + 1/4) * x = 1

13/4 * x = 1

x = 1 / (13/4)

x = 4/13

3) 8 * x = 1

x = 1/8

4) (2/5)^2 * x = 1

2^2 / 5^2 * x = 1

4/25 * x = 1

x = 1 / (4/25)

x = 25/4

x = 6 + 1/4