Question

How many sheets of 4 ft.x 8 ft. subflooring material are needed to cover a house measuring 40 ft. x 30 ft.?

A.

40

B.

38

C.

30

D.

24

Answer 1

30
medal please

Answer 2

howd you get that

Answer 3

i work construction

Answer 4

but how do you work that problem out?

Answer 5

its easy time 8 and 4 then - 2 then yull get your answer im positive thats right

Answer 6

then what do you do with the 40 ft x 30 ft

Answer 7

the 2nd problem is your picture but the 1 problem you solve

Answer 8

so your saying if i had this problem:
How many sheets of 4 ft.x 8 ft. subflooring material are needed to cover a house measuring 38 ft. x 24 ft.?

itd be 30 also.?

Answer 9

I'm pretty sure naahhbass is incorrect on this one. The total floor area you need to cover is 40*30ft = 1200ft^2. Then divide this by the area that one tile covers (4x8ft=32ft^2)

Answer 10

You'll get a fractional answer, but seeing as it's a realistic problem, round up to the nearest whole number to get your answer

Answer 11

The area of 1 sheet is 4 x 8. this gives you 32 square feet.
You need to find out how many 4x8 will fill 40x30 that gives you 1200\[x(4\times 8)=40\times30\]\[32x=1200\]\[x=37.5\]