Answer:
You need to get a 95 on the next test to have a 90 grade average.
Step-by-step explanation:
(85 + 90 + n)/3 = 90
<u>Step 1: Multiply both sides by 3</u>
(85 + 90 + n)/3 * 3 = 90 * 3
85 + 90 + n = 270
<u>Step 2: Subtract 85 from both sides</u>
85 + 90 + n - 85 = 270 - 85
90 + n - 90 = 185 - 90
n = 95
Answer: You need to get a 95 on the next test to have a 90 grade average.
The answer is -6x + 5y <_ -30
Answer:
66.125
Step-by-step explanation:
The ones that match are
1 and 5
2 and 6
7 and 3
8 and 4
Answer:
terrells' age is 18 years old
Step-by-step explanation:
d represents dantes' age
t represents terrells' age
d= 3t
d+ t = 72
substitute d to the second equation
d+ t = 72
3t+t=72
4t = 72
t = 18
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