ryanbransky
29.05.2020 •
Mathematics
John and Mary are using rolls of fabric to make a rectangular stage curtain for their class play. The rectangular piece of fabric on each roll measures 2.5 feet by 15 feet. If the area of the curtain is 200 square feet, what is the least number of rolls they need?
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Ответ:
The least number of rolls needed
= 5 rolls
Step-by-step explanation:
Area = length x width
A = l x w
A = 15 x 2.5
A = 37.5 ft²
If 37.5 ft² = 1 roll
What about 200 ft² = ?
= (200 x 1) ÷ 37.5
= 200 ÷ 37.5
= 5.33°
Least number of rolls. = 5 rolls
Ответ: