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# If 2 sweaters cost 27.04. How much would 6 sweaters cost. 81.12 right?

If 2 sweaters cost 27.04. How much would 6 sweaters cost. 81.12 right?

### 4 Answers by Expert Tutors

Parviz F. | Mathematics professor at Community CollegesMathematics professor at Community Colle...
4.8 4.8 (4 lesson ratings) (4)
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You have written your equations backward.

27.04/ 2 = X/ 6

Multiply both sides by 2

X = 27.04 * 3 = 81.12

This is a ridiculous mistake that everyone makes.

1/4  equals 4. Because get too much involved in procedure that they loose common sense.

Elizabeth D. | Tutor of French, Spanish, English, Reading, and ESLTutor of French, Spanish, English, Readi...
4.2 4.2 (15 lesson ratings) (15)
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6 sweaters is 3 times 2 sweaters, so 3 times \$ 27.04 is \$ 81.12, yes you are right

2/27.04 = 6/x where x is the price of the sweaters

multiply the 2 by 3 to get 6 and multiply the 27.04 by the same number 3 to get 81.12
Shad S. | Bilingual math teacher with 15 years experience.Bilingual math teacher with 15 years exp...
4.8 4.8 (5 lesson ratings) (5)
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Two sweaters for \$27.04 means each one costs 13.52 (half of the total)

\$13.52
x      6
______
\$81.12

You are correct.

Or to solve it with algebra

Set up a relationship with the two quanties and an unknown (x).
2 / 27.04 = 6 / x

Cross multiply
2x = 27.04 * 6

Divide both sides by 2
x = 27.04 * 3

x = 81.12
Malcolm M. | Retired medical doctor effective at explaining math and scienceRetired medical doctor effective at expl...
5.0 5.0 (1 lesson ratings) (1)
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