Expert: Sherman D. - 6/10/2007

Question
I missed 6 out of 42 questions on a mathmatices test. What p[ercent did i get correct?

2. Find the sales tax on a purchase of $336 at 6% sales tax rate.

3. How many cards can be cut from 7ft. of cardstock if each peice is 3 3/8 in. long?

4.(totally confused with this one) How many inches of ribbon is used to cut 26 pieces when each piece is 8 3/4 in. long?

5. A store owner buys scissors for $15.85 a dozen. If she sells them for $1.99 each, how much profit does she make on a dozen scissors?

Answer
1.)
(42 - 6)/42 * 100 = 85.7% or about 86%

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2.)
336 * .06 = $20.16
The sales tax is $20.16

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3.)
7 * 12 = 84
84/(3 3/8)
84/(17/8)
84 * (8/17)
672/17
39.5294
39

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4.)
26 * 8 3/4
26 * 35/4
910/4
227.5 inches

Here is how it is done, you have 26 pieces of ribbon and if each piece of ribbon is 8 3/4 long, then just multiply 26 by 8 3/4.

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5.)
1.99 * 12 = 23.88
23.88 - 15.85 = $8.03 of profit for a dozen scissors