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43 votes
Help please? I’m not too sure what to do?

A student has scores of 66.75, 66, and 72.25 on his first three tests. He needs an average of at least 70 to earn a grade of C. What is the minimum score that the student needs on the fourth test to ensure a C?

User FedG
by
2.8k points

2 Answers

7 votes
7 votes

Answer: i thank it is 75

Explanation:

hope i help

User Sokid
by
3.0k points
19 votes
19 votes

Answer:

75

Explanation:

Average needed to get grade C = 70

Average = Total Amount / No of Items.

No of items = 4

therefore Total needed = 70 x 4 = 280

current total score = 66.75 + 66 + 72.25 = 205

the fourth test minimum score = 280 - 205 = 75

User Donghwan Kim
by
3.2k points