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gayaneshka [121]
3 years ago
5

There are 15 risers in a set of stairs running from the basement to the first floor. Each riser is 7 1/4" high. What is the dist

ance between floors?
Mathematics
1 answer:
slava [35]3 years ago
3 0
<h3>Answer: 108.75 inches or 9.0625 ft</h3>

This is equivalent to 9 ft + 0.75 of an inch, or 9 ft + 3/4 of an inch

==========================================================

Work Shown:

7 & 1/4 = 7.25

Each riser is 7.25 inches tall

15 of them gives a total height of 15*7.25 = 108.75 inches

Divide that by 12 to convert to feet

108.75/12 = 9.0625 feet

9.0625 ft = 9 ft + 0.0625 ft

9.0625 ft = 9 ft + (0.0625 ft)*(12 inches/1 ft)

9.0625 ft = 9 ft + 0.75 inches

9.0625 ft = 9 ft + 3/4 of an inch

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