dane18237 dane18237

21-12-2014
Mathematics

contestada

A contractor digs a hole for the basements of a new house that is 40 feet long and 10 1/2 feet deep. What is the width of the hole if 6,510 cubic feet of dirt are removed?

A.80 feet
B.81 1/4 feet
C.16 Feet
D.15 1/2 feet

Respuesta :

abandrewstar21 abandrewstar21

28-12-2014

D. 15.5

40*10.5 = 420

6510/420 = 15.5

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