Answer:

WHAT IS ASKED?

What was Mrs. Francisco change if she paid ₱1,000.00

WHAT ARE GIVEN?

Amount of gallon of alcohol = ₱ 650.00

Number of boxes of face mask= 2

Amount of boxes of face mask= ₱225.00

Discount= 15% or 0.15

Amount paid= ₱1,000.00

HOW TO SOLVE THE PROBLEM?

First sum up ₱650.00 and (2×₱225) to get the total amount bought. Second, get the discount amount by multiplying the total amount bought with the discount rate, [₱650.00+(2×₱225.00)]×0.15. Third, subtract the discount amount from the total amount bought. Finally, subtract the difference from ₱1000.00 to get the amount of Mr. Francisco's change.

SOLUTION AND ANSWER?

₱650.00+(2×₱225.00) = ₱1,100.00

₱1,100.00×0.15= 165

₱1,100.00-165= ₱935.00

₱1,000.00-₱935.00= ₱65.00

₱65.00 is the amount of Mrs. Francisco's change.