Question

Patricia had less than $9 to spend when she went to the grocery store. She bought 1 pound of tomatoes and wanted to spend the rest of her money on potatoes. One pound of tomatoes costs $2.40, and one pound of potatoes costs $2.20. Write an inequality to show how many pounds of potatoes, X, Patricia can buy.

Answer 1

Answer: 2.40 + 2.20x less then 9

Step-by-step explanation:

so we know that he bought some tomatoes that cost 2.40 and he bought 1 pound of that so we can add 2.40 to our answer then we dont know how much of potatoes he bough so we have to put and x

last is the easy none it says less then 9

the less then sign then 9

Answer 2

2.40 + 2.20x < 9, Where x ≥ 0,

Explanation:

Here x represents the number of pounds of potatoes bought by Patricia,

Since, one pound of potatoes costs $2.20,

⇒ x pounds of potatoes costs 2.20x dollars,

Now, except this she bought 1 pound of tomatoes which costs $2.40 per pounds,

Thus, her total spending,

S = 2.40 + 2.20x

It is given that she had less than $9 to spend,

⇒ S < 9

⇒ 2.40 + 2.20x < 9

Which is the required inequality.

Note : Number of pounds can not be negative,

⇒ x ≥ 0