4 years ago

Heather has the following averages in her math class:

Mathematics

1 answer:

zmey [24]4 years ago

3 0

Answer:

Step-by-step explanation:

multiply the averages by their weighted percentage

x = final exam

88(.2) + 84(.2) + 92(.4) + x(.2) = 90

solve for x

x(.2) = 90 - 71.2 = 18.8

divide both sides by 0.2

x = 94

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