Question

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

Answer 1

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.

Answer 2

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