Page 31 - Math Course 1 (Book 2)

Solving Open Sentence Equations

Your Turn!

Real World Example
SHOPPING

Maleka needs $75 or more for a shopping trip. She already bought a sweater for $22. Does Maleka need to
save $51, $52, $53, or $54 to have enough money for the shopping trip? Find the solution set for s + 22 ≥ 75,
if the replacement set is {51, 52, 53, 54}.

A. {51, 52}; Maleka needs to save $51 or $52 for the shopping trip.

B. {53, 54}; Maleka needs to save $53 or $54 for the shopping trip.

C. {55}; Maleka needs to save $54 for the shopping trip.

D. {35}; Maleka needs to save $35 for the shopping trip.

Answer

BOOKS
A mail-order Book Club is having a sale on paperback books. You can purchase an unlimited number of
books for $8.50 each. There is a $7.00 charge for shipping. How many books can you buy if you have $60 to
spend?

A. 7
B. 5
C. 6
D. 8

Answer

23