Question

Find x .

a.21.4
b. 15.1
c. 32.7
d. 29.2

Answer 1

So this is going to be using proportions, which in this case is going to be
`(18)/(21) =(25)/(x)`

Firstly, cross-multiply to get
`18x=525`

Next, just divide 18 on both sides, and your answer will be
`x=29.2` , or the last option.