Achemist needs 80 milliliters of a 35%
solution but has only 29% and 37%
solutions available. find how many
milliliters of each that should be mixed
to get the desired solution.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract