Question

The directions on a sewing pattern say to buy an extra 12.5% of fabric to account for error. Sam needs 2.75 yards of fabric to make a shirt, so he buys 2.4 yards. Choose the correct statement.

A.Sam bought the correct amount of fabric because he bought what was suggested.

B.Sam bought the correct amount of fabric because he needs less than 2.4 yards.

C.Sam did not buy the correct amount of fabric because he needs less than 2.4 yards.

D.Sam did not buy the correct amount of fabric because he should have bought 3.09 yards​

Answer 1

Sam should have bought 3.09 yards of fabric instead of 2.4 yards

So, Option D is correct.

Explanation:

Total fabric needed by Sam = 2.75

According to directions on a sewing pattern they say to buy an extra 12.5%

So, extra fabric would be: 12.5% of 2.75

Solving

`12.5\% \ of \ 2.75\\=(12.5)/(100)* 2.75 \\=0.343`

Now adding 0.343 into 2.75 to get extra fabric quantity:

2.75+0.343

=3.09

Therefore Sam should have bought 3.09 yards of fabric instead of 2.4 yards

So, Option D is correct.