Question

Marie mixes 16 liters of 18% acid solution with a 27% acid solution which results in 21% acid solution.

Let x represent the number of liters of 27% solution used. Which equation can be used to find the number of liters of 27% acid solution in the mixture?

A. 2.88 + 0.21x = 0.27(x + 16)

B. 2.88 + 0.27x = 0.21(x + 16)

C. 4.32 + 0.21x = 0.27(x + 16)

D. 3.36 + 0.27x = 0.18(x + 16)

Answer 1

0.27x + 0.18(16) = 0.21(x+16)

Looks like B to me

Answer 2

Thanks