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Nitella [24]
3 years ago
15

10% of 40 is _____. Explain your method.

Mathematics
2 answers:
KATRIN_1 [288]3 years ago
6 0

Answer:

4

Step-by-step explanation:

Make the 10% a decimal

.10

Then multiply it by 40

.10*40

You get 4

topjm [15]3 years ago
3 0
10% of 40 is 4 because 40 divided by 10 is 4
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7 0
3 years ago
Maria scored 72, 97, and 82 on her first three math tests. She wants to have a mean score of 82 for the quarter. How many points
Rom4ik [11]

Answer:

<em>She needs </em><em>77 </em><em>on her last test to earn an 82 for the quarter.</em>

Step-by-step explanation:

Maria scored 72, 97, and 82 on her first three math tests.

She wants to have a mean score of 82 for the quarter.

Let us assume that she must score x on her last test to earn an 82 for the quarter.

So the average score will be,

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