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Alexus [3.1K]
2 years ago
8

nolan uses 7 inches of string to make each bracelet. if nolan makes 3 bracelets, how many inches of string will he use?

Mathematics
2 answers:
pantera1 [17]2 years ago
6 0

Answer:

21 inches

Step-by-step explanation:

We can write a ratio to solve

7 inches        x inches

-------------  = -------------------

1 bracelet      3 bracelets

Using cross products

7*3 = 1x

21 = x

21 inches

larisa [96]2 years ago
4 0

Answer:

21 inches

Step-by-step

This can be solved two ways: addition or multiplication.

Addition: Since there are three bracelets you could add 7 three times

                 7+7+7

             = 14+7

             = 21

Multiplication: Simply multiply 7 x 3= 21

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Is this a right triangle or not?  If it's a right triangle, you could use the Pythagorean Theorem to find the length of the 3rd side, which would be the hypotenuse.  Thus, 14^2 + 4^2 = c^2, where c is the length of the hypot.

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This does not agree with any of the four possible answers.  Thus, you must look at each of these possible answers and eliminate any that could not be correct.

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