Brian scored 92, 87 and 88 on three science tests. Write and solve an equation to find the score Brian will need on the fourth s
cience test so that the mean test score is 90.
1 answer:
Answer:
You would need to score a 93% to have an average of 90.
Step-by-step explanation:
Well, to check my work you would need to find the average.
So, 93 + 92 + 88 + 87 = 360. Then you divide by four; 360 / 4 = 90. ^^
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There are no values of x that make the equation true so there is no solutions.
Answer:
x=32
Step-by-step explanation:
i took the test
Sry just add a triangle on each side took that test
