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The diameter for a u.s penny is 3/4 inches. How many pennies would it take to make a row 42 inches long

User Auntyellow
by
8.4k points

2 Answers

4 votes

Let's consider the number of pennies that we need to be
p. Given this we can say that we are trying to find
p in the expression:


(3)/(4) p = 42


Let's multiply both sides by
(4)/(3) to get:


p = 56


We would need 56 pennies.

User Ymin
by
9.2k points
3 votes

3/4 6/4 9/4 12/4

12/4=3 inches for 4 pennies so

42 inches equal 56 pennies

you can also do 0.75 times 42

User Pimgd
by
8.1k points

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