Question

An A grade will be given to students having at least 370 total test points. There is one more test to take before the semester is over. Lesha wants to know what she needs to score on the next test to finish with an A. Write and solve an equation to determine what score she needs to get. Explain your reasoning.

Answer 1

95 points

Explanation:

Given

`n = 370` --- expected point

See attachment for points

Required

An inequality to determine the points needed

First, we calculate the points (p) Lesha has already accumulated.

`p = Test\ 1 + Test\ 2 + Test\ 3`

`p = 75 + 100 + 100`

`p = 275`

Let the number of points needed be t.

So:

`p + t = 370` ---- i.e. She must score a total of 370

Make t the subject

`t = 370 -p`

Substitute 275 for p

`t = 370 -275`

`t = 95`