Question

Svetlana's hair is 4 centimeters long. Her hair grows 1.5 centimeters per month. Svetlana wants her hair to grow so that it is at least 7 centimeters long. Write an inequality to determine the number of months, m, it will take Svetlana's hair to grow so it is at least 7 centimeters long.

Answer 1

Try setting it up using an equation
4+1.5m=7
Allow m to represent months
Subtract four from seven then divide that by 1.5 to find m.