Question

Demi had $170 in her bank account at the beginning of the month and $125 at the end of the month. Each time she eats lunch in the cafeteria, the price of lunch is deducted from her account. If Demi ate lunch in the cafeteria 5 times this month, what was the price, x, of each lunch? (No other deductions or deposits were made.)

Answer 1

170-5x= 125 70−5x170−170−5x−5x−5x−5x=====125125−170−45−45−59

Substract 170 from both sides.

Simplify

Divide both sides by −5.

Simplify.

Explanation:

Answer 2

$9 dollars for each lunch.


170-125=45

45÷5=9