2 years ago

ANSWER THIS QUESTION PLZ

Mathematics

1 answer:

Delicious77 [7]2 years ago

6 0

Answer:

640 im pretty sure

Step-by-step explanation:

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Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi

anastassius [24]

Answer:

Grades to be scored in 3rd exam = 88

Step-by-step explanation:

Given that average of 3 numbers is 85.

First two numbers are 81 and 86.

To find:

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Solution:

Let the third number = $x$

Formula for average is:

$Average = \dfrac{Sum\ of\ numbers}{Total\ count\ of\ numbers}$

Here, sum of numbers = $81+86+x =167+x$

Total count of numbers = 3

$85 = \dfrac{167+x}{3}\\\Rightarrow x=255-167\\\Rightarrow \bold{x=88}$

Grades to be scored in 3rd exam = 88

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3 years ago

Is 0.88 a terminating decimal

KengaRu [80]

Yes
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Step-by-step explanation:

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2 years ago

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mario62 [17]

Answer:

35 blocks are given to the class

Step-by-step explanation:

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