The sparkle houses cleaning company cleaned 28 houses so far this week. If this number represent 40% of the total number of houses that are contracted to clean, how many total houses will the company clean by the end of the week?

If you would like to know how many total houses will the company clean by the end of the week, you can calculate this using the following steps:

x = ? ... the total number of houses

40% of x is 28

40% * x = 28

40/100 * x = 28 / * 100/40

x = 28 * 100 / 40

x = 70 houses

Result: The company will clean 70 houses by the end of the week.