IM 7.6.12 Practice: Solving Problems about Percent Increase or Decrease
A backpack normally costs $25 but it is on sale for $21. What percentage is the discount?
Find each product.
Select all expressions that show increased by 35%.
Complete each sentence with the word discount, deposit, or withdrawal.
Clare took $20 out of her bank account. She made a _____.
Kiran used a coupon when he bought a pair of shoes. He got a _____.
Priya put $20 into her bank account. She made a _____.
Lin paid less than usual for a pack of gum because it was on sale. She got a _____.
The initial freshman class at a college is 10% smaller than last year’s class. But then during the first week of classes, 20 more students enroll. There are then 830 students in the freshman class.
Which equation matches this story?
Solve the equation you chose, and explain what the solution means in the situation.
A store reduces the price of a computer by $20. Then during a 10% off sale, a customer pays $830.
Which equation matches this story?
Solve the equation you chose, and explain what the solution means in the situation.
In the problems above, why does one equation have parentheses and the other doesn't?