Question

If x^3=8 and y^2=25, what is the value of x+y

Answer 1

15.2

Explanation:

x^3 = 8

x = 8/3

x = 2.7

y^2 = 25

y = 25/2

y = 12.5

x+y = 2.7 + 12.5 = 15.2

Answer 2

7

Explanation:

x³ = 8

Cuberoot of x³ = cuberoot of 8

x = 2

y² = 25

√y² = √25

y = 5

2 + 5 = 7