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Pachacha [2.7K]
3 years ago
5

The mean average of the following 4 math marks will become your report card marks 97,78,84, and 86 what will your report card ma

rk be ?
Mathematics
2 answers:
Bond [772]3 years ago
7 0

Answer:

86.25

Step-by-step explanation:

97+84+78+86=345 then u divide by 4 which is 86.25

vladimir2022 [97]3 years ago
6 0

<h3><em><u>86.25 I think because </u></em></h3>
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Sav [38]
Simplifying
5y + -2 = 4y + 7

Reorder the terms:
-2 + 5y = 4y + 7

Reorder the terms:
-2 + 5y = 7 + 4y

Solving
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Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-4y' to each side of the equation.
-2 + 5y + -4y = 7 + 4y + -4y

Combine like terms: 5y + -4y = 1y
-2 + 1y = 7 + 4y + -4y

Combine like terms: 4y + -4y = 0
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Add '2' to each side of the equation.
-2 + 2 + 1y = 7 + 2

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Combine like terms: 7 + 2 = 9
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y = 9

Simplifying
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