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Monica has $20. She needs to buy a gallon of milk that costs $2. 50. She also wants to buy yogurt, which costs $1. 20 a cup. Which inequality can you use to find the number of cups of yogurt Monica can buy? 1. 20x 2. 5 Greater-than-or-equal-to 20 1. 20x 2. 5 Less-than-or-equal-to 20 1. 20x 2. 5 < 20 1. 20x 2. 5 > 20.

Sagot :

Answer:  [tex]1.20x + 2.50 \le 20[/tex]

Explanation:

x = number of cups of yogurt

1.20x = cost of all the yogurt only

1.20x+2.50 = adding on the cost of milk

We set this expression to be less than or equal to 20.

[tex]1.20x + 2.50 \le 20[/tex]

In other words, the highest 1.20x+2.50 can go is 20 since $20 is her budget.