Respuesta :
Let's consider the number of pennies that we need to be [tex]p[/tex]. Given this we can say that we are trying to find [tex]p[/tex] in the expression:
[tex]\dfrac{3}{4} p = 42[/tex]
Let's multiply both sides by [tex]\frac{4}{3}[/tex] to get:
[tex]p = 56[/tex]
We would need 56 pennies.
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