Question

Concrete must be purchased by the cubic yard. How much will it cost to pour a slab of pavement 11 feet by 11 feet by 3 inches for a patio if the concrete costs $63.00 per cubic yard?

Answer 1

Convert each dimension in 11 ft x 11 ft x 3 into yards. Multiply them to find the total volume in cubic yards and then multiply by $63 to find the total cost.

Answer 2

@ranga I'm about to sound really dumb but how do you convert feet into yards? It's been a while since I've done that.

Answer 3

1 yard = 3 feet
Divide no. of feet by 3 to convert to yards.

Answer 4

So divide 11/3 ? and then what about the three inches?

Answer 5

1 yard = 3 feet
1 foot = 12 inches
Therefore, 1 yard = 36 inches.
Divide no. of inches by 36 to convert into yards.

Also, if you want to find out the conversion factor, then in Google you can type;
yard in inches
inches in yards
feet in yards
etc. to get the conversion factors.

Answer 6

Ok. So I did all that and my answer wasn't one of the options given.

Answer 7

what is the answer you got from the calculations?

Answer 8

Well I got 3.66 yd x 3.66 yd x 0.08 yd. I then multiplied by $63 and got 466.20

Answer 9

Error in multiplication. check again.

Answer 10

What did I do wrong?

Answer 11

I just plugged it in again and it said the same thing.

Answer 12

I multiply the same four numbers and get a very different result than yours.

Answer 13

Really? Hmm. Let me try again

Answer 14

Also, to avoid rounding off errors, I'd wait until the end to round off.
11/3 * 11/3 * 3/36 * 63 = ?

Answer 15

Oohhhh wait I see what I did wrong! I added instead of multiplied. Oops haha

Answer 16

So for my new answer I got $70.58

Answer 17

That is what I got. Does it match any of the answer choices?

Answer 18

Yep

Answer 19

alright.

Answer 20

Thank you!