Lisa has $7.80 to spend on some tomoatoes and a loaf of bread. tomatoes cost $1.20 per pound. and a loaf of bread costs $1.80.

Question

the inequality 1.20x+1.80<7.80 models this situation, where x is the number of pounds of tomatoes.
Solve the inequality. how many pounds of tomatoes can Lisa buy?

Answer 1

To solve the inequality, we need to isolate the variable x.

1.20x + 1.80 < 7.80

Subtract 1.80 from both sides of the inequality:

1.20x < 6.00

Now divide both sides of the inequality by 1.20:

x < 6.00 / 1.20

x < 5

So, Lisa can buy a maximum of 5 pounds of tomatoes.