Question

can someone help.
If a pool deck of 650 square feet is to be laid with concrete 3" thick, what volume of concrete will have to be poured in cubic yards? (Give answer in nearest whole cubic yard.)

___ cubic yards

Answer 1

What is the thickness of concrete? I didn't get that symbol "

Answer 2

3"

Answer 3

inches????

Answer 4

I think its feet..inches correspond to symbol '

Answer 5

the volume of concrete to be poured = Area of deck x thickness of concrete

Answer 6

659x3/12

Answer 7

650

Answer 8

If the thickness is 3feet, the volume = 650 x 3 =1950 cubic feet = 650 cubic yards

Answer 9

so that's not yet

Answer 10

What else is in that?

Answer 11

12 in =1 foot
so we 3/12=0.5

Answer 12

yes but 3/12=0.25

Answer 13

1foot=12inches
1yard=3feet
This is what that matters in this question

Answer 14

ok

Answer 15

do you want any help in solving it? And as far as i know, 3" = 3feet

Answer 16

yes i need help im not sure

Answer 17

so we have 650 right

Answer 18

yes, the solution is exactly what i gave you earlier in a comment.

Answer 19

Any doubt? Ask without any hesitation

Answer 20

650/3???

Answer 21

I will repeat the solution clearly..

Answer 22

12 in=1 foot
1 yard=3 feet
right

Answer 23

Volume of concrete(in cubic feet) = Area of deck(in square feet) x thickness of concrete(in feet)
= 650 x 3
= 1950 cubic feet
1yard = 3feet....so, 1foot = 1/3yard
1cubic feet = 1/27cubic yards
1950cubic feet = 1950/27 cubic yard = 72.22 cubic yards
Sorry for the wrong answer i gave a few minutes ago.

Answer 24

yes right

Answer 25

they got 6 cubic yards i don't know how they got that

Answer 26

okay then you are right about the units of thickness..it is inches..
Volume = 650 x 3/12 = 1950/12 cubic feet
1950/12 cubic feet = 1950/(12)(27) cubic yards = 72.22/12 cubic yards = 6 cubic yards approx.

Answer 27

I kept 12 in the denominator throughout the process just to make it simple for you to understand the difference between the previous solution and the present one.