Question

What is 121.66=2.15h +72.21
A 1.7
B 23
C 17
D none of these

Answer 1

B = 23

Explanation:

121.66 = 2.15h + 72.21

To Begin, use the additive property of number:

Subtract 72.21 from each side. The RHS and the LHS

121.66 - 72.21 = 2.15h + 72.21 - 72.21

49.45 = 2.15h

Then Divide both sides by the coefficient of 'h'

(49.45) / 2.15 = (2.15)h / 2.15

Simplifying further becomes:

h = 49.45 / 2.15

h = 23