Question

Sara goes to Fredonia University. She has $900 in her savings account. she needs to buy a small laptop computer before the next semester. the laptop costs $600. she withdraws $60 every two weeks for food. How many times can she withdraw money for food? Write an ineqality to explain.

Answer 1

5 times because 5x60=300 and 900-300=600. That is the $600 for the laptop. 5x60 is less than 900.

Answer 2

Given:
Saving amount = $900
Cost of Laptop = $600
Cost of food = $60 every 2 weeks

Let x be the number of times Sara can withdraw money for food. The inequality would be:

60x + 600 < 900

60x + 600 < 900 
        - 600      -600
60x             < 300
÷ 60                 ÷60
     x             < 5

Sara can withdraw money 5 times or less for food.