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vfiekz [6]
3 years ago
15

a student achieved the following grades on his tests :87,95 ,76 and 88 percent . he wants 85 percent or better overall . what gr

ade should he must get in his last test to achieve that average
Mathematics
2 answers:
Pachacha [2.7K]3 years ago
8 0

Answer:

Atleast 79

Step-by-step explanation:

Average 》 85

If 5 tests,

Sum 》 85×5

Sum 》 425

Let the fifth test score be X

X + 87 + 95 + 76 + 88 》 425

X 》425 - 346

X》79

m_a_m_a [10]3 years ago
4 0

Answer:

Step-by-step explanation:

87+95+76+88+x/5=85

346+x=85x5

x=425-346

x=79

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Answer:

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Step-by-step explanation:

Set this up as an equation

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Cross multiply

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Check work:

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Cross multiply

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