Question

will medal and fan for help

Answer 1

Should an estimate or exact answer be calculated? Then do the appropriate calculation.
The sewing club needed 90 yards of lace to finish various projects. They had 2 rolls of lace that had 12 1/3 yards on each roll and 3 rolls with 24 2/3 yards of lace on each roll. Did they have enough lace to finish their projects?

A. an estimate can be used to know if they have enough lace.
12x2+24x3=96 they have at least 96 yards of lace.

B. The exact answer is needed to know if they have enough lace.
they have 98 2/3 yards of lace.

Answer 2

@SolomonZelman

Answer 3

Okay,
So, the first 2 rolls of laces have \(\large\color{black}{ 12\frac{1}{2} }\) each.
And, the other 3 rolls of laces have \(\large\color{black}{ 24\frac{2}{3} }\) each.

Answer 4

So, what do you think is the amount of laces (in rolls) that they have overall?

Answer 5

it would be B correct ?????????

Answer 6

\[\large\color{blue}{2 \times \left(\begin{matrix} 12\frac{1}{2}\\ \end{matrix}\right)+3 \times \left(\begin{matrix} 24\frac{2}{3}\\ \end{matrix}\right)}\]

Answer 7

this would be the exact value, which you would have to calculate. which estimations tell me the exact answer.

Answer 8

thanks so much i appriciate all your help

Answer 9

Anytime, just tell me what you get when you are done:)

Answer 10

http://www.wolframalpha.com/input/?i=2%2812+1%2F2%29+%2B+3%2824+2%2F3%29

Answer 11

99 is the exact result.
So did they have enough lace?

Answer 12

yes

Answer 13

there you go!

Answer 14

you have been such a great help what school do you go to????