Kim has exactly enough money to buy 40 oranges at \(3x\) cents each. If the price rose to \(4x\) cents per orange, how many oranges could she buy?

Logic Sep 10, 2018

#1**0 **

Let the amount of oranges that Kim could buy if the price rose to 4x cents per orange be n .

the amount of money Kim has = 40 * 3x

the amount of money Kim has = n * 4x

n * 4x = 40 * 3x

4nx = 120x

Divide both sides of the equation by x .

4n = 120

Divide both sides of the equation by 4 .

n = 30

hectictar Sep 10, 2018