Question

Robert is putting new roofing shingles on his house. Each shingle is 1/3feet long. The north part of the house has a roof line that is 60 feet across. How many shingles can be placed (side by side) on the north part of the house?

A. 120 shingles
B. 180 shingles
C. 90 shingles
D. 240 shingles

Answer 1

To find out how many shingles can be placed on the north part of the house, divide the length of the roof line by the length of a single shingle. The correct answer is 180 shingles.

Step-by-step explanation:

To find out how many shingles can be placed on the north part of the house, we need to divide the length of the roof line by the length of a single shingle.

The roof line is 60 feet long and each shingle is 1/3 feet long. To divide two fractions, we multiply the first fraction by the reciprocal of the second fraction.

So, the number of shingles that can be placed side by side on the north part of the house is:

(60 feet) ÷ (1/3 feet) = (60 feet) × (3/1 feet) = 180 feet

Therefore, the correct answer is 180 shingles (option B).