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Darryl's working on another staircase. the volume of the staircase is 34 cubic feet. he poured 3 cubic feet of concrete into the lowest stair and 6 cubic feet into the middle stair. how much concrete does darryl need for the highest stair?

Respuesta :

thaovtp1407

Answer:

25 cubic feet of concrete

Step-by-step explanation:

Given the information:

  • the volume of the staircase is 34 cubic
  • 3 cubic feet of concrete into the lowest stair
  • 6 cubic feet into the middle stair

=>The volume of concrete darryl need for the highest stair is:

The volume of the staircase - the volume of the lowest stair -  the volume of middle stair

= 34 -  3 - 6

= 25 cubic feet of concrete

Hope it will find you well.

Answer:

25

Step-by-step explanation:

You already have 3 and 6 so we going to add that first  

                  ( 3+6)=9

So we have 9 and we are going to count on up until you hit 34 which will be 25 so your answer is 25

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