How many liters of water should be evaporated from 60 liters of a 28% salt solution so that the remaining solution contains 32% salt? a. 7.5 liters b. 8.4 liters c. 43.2 liters d. 52.5 liters

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

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