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g100num [7]
2 years ago
9

PLS HELP ME ASAP I NEED HELP RN PLS WHOEVER ANSWERS IS THE BRAINLIEST

Mathematics
1 answer:
posledela2 years ago
4 0

Answer:

100

Step-by-step explanation:

She wants to average 85, so adding ALL three of her scores, divided by 3 needs to equal 85.

(75 + 80 + x)/3 = 85

Times by 3.

75 + 80 + x = 255

155 + x = 255

subtract 155.

x = 100

She needs 100 on the third test.

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Sophie [7]
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6 0
3 years ago
Read 2 more answers
If y=14 when x=20, find x when y=3.5
Kruka [31]
I hope this helps you





when y=14 x=20


y=3,5 x=?



?.14=20.3,5


?=20.3,5/14


?=5
7 0
3 years ago
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