Question 123240This question is from textbook
: Erza and tava sold at least 150 cupon books. Erza sold at most 30 books more than twice the number tava sold. Show and describe all possible combinations of the numbers of cupon books erza and tava sold. List two possible combinations.
This question is from textbook
Answer by ontmtnbike(2)   (Show Source):
You can put this solution on YOUR website! The question says that Erza sold AT MOST 30 more than twice the number Tava sold, so the lowest number that Erza could've sold would me 1 more than twice the number Tava sold.
Let x= the number of coupon books that Tava sold
Let 2x+30= the number of coupon books that Erza sold.
(you can use 2x+1, 2x+2, 2x+3, etc...)
x+2x+30=150
3x=120
x=40
Therefore 150-40=110
Tava sold 40 books and Erza sold 110 books.
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