Sara needs to buy some tuna. Each can costs .79 and she has a coupon for $2 off entire purchase, how many cans of tuna can she buy for less than $7.? (translate into inequality and solve)
9 years ago
9 years ago
So, Sarah can buy 11 cans?
9 years ago
Right, again!
9 years ago
yes!
11 months ago
To solve this problem, we need to determine the number of cans of tuna Sara can buy for less than $7.
Let's represent the number of cans Sara can buy as "x".
The cost of each can is $0.79.
So, the total cost of "x" cans of tuna would be 0.79x dollars.
Sara has a coupon for $2 off the entire purchase.
Therefore, the total cost of "x" cans of tuna, after applying the coupon, would be 0.79x - 2 dollars.
According to the problem, Sara wants to spend less than $7 on cans of tuna.
So, the inequality representing this situation would be:
0.79x - 2 < 7
To solve this inequality for "x", we can follow these steps:
1. Add 2 to both sides of the inequality:
0.79x - 2 + 2 < 7 + 2
0.79x < 9
2. Divide both sides of the inequality by 0.79:
(0.79x)/0.79 < 9/0.79
x < 11.39
Therefore, Sara can buy less than 11 cans of tuna for less than $7.