Question

John must have at least 289 test points to pass his math class. He already has test scores of 72, 78, and 70. Which inequality will tell him at least how many more points he needs to pass the class

A. 72 + 78 + 70 + x < 289
B. 72 + 78 + 70 + x ≤ 289
C. 72 + 78 + 70 + x ≥ 289
D. 72 + 78 + 70 + x > 289

Answer 1

Since the sum of scores must be at least 289:

72+78+70+x ≥ 289

Answer 2

C.
`72+78+70+x\geq 289`

Explanation:

Let x represent the number of points John needs to pass the class.

We have been that John must have at least 289 test points to pass his math class. He already has test scores of 72, 78, and 70.

After scoring x points on John's total score would be
`72+78+70+x`.

Since John needs at least 289 test points to pass his math class, so the total number of points should be greater than or equal to 289.

We can represent this information in an inequality as:

`72+78+70+x\geq 289`

Therefore, the inequality
`72+78+70+x\geq 289` represents the number of more points John needs to pass the class.