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snow_tiger
10 days ago
7

Serena had 20 minutes of math homework on Monday, 35 minutes on Tuesday, and 25 minutes on Wednesday. She spent the same amount

of time on homework on Friday as she had on Thursday. She had a total of 110 minutes of math homework for all five days. How many minutes of math homework did Serena have on Thursday?
Mathematics
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Sari estimated the quotient of 120.78 ÷ 9.9 to be 12. She said that her estimate is slightly greater than the actual answer. Is
tester [12383]
Sari's claim is incorrect because dividing 120.78 by 9.9 equals approximately 12.2, and since 12 is less than 12.2, her estimate is not actually greater than the true result.
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4 months ago
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a garden is 18 feet 3 inches long and 10 feet 8 inches wide. the amount of fencing needed to enclose the garden is Need help and
tester [12383]

Answer:

\boxed{57ft 10in}

Step-by-step explanation:

Hello!

To find the total length when it is 18 feet 3 inches, we must add both lengths:

18ft 3in + 18ft 3in = 36ft 6in

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3 months ago
Add the two expressions.<br><br> −4.2x+3 and 2.5x−6<br><br> Enter your answer in the box.
babunello [11817]

Answer:

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Step-by-step explanation:

−4.2x+3 +2.5x−6

I prefer to align them one above the other.

−4.2x+3

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 -1.7x -3

4 0
3 months ago
In how many ways can you put seven marbles in different colors into two jars? Note that the jars may be empty.
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Answer:

128

Step-by-step explanation:

Imagine you have two jars and seven marbles.

The result is 2^{7}.

That totals 128

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2 months ago
How can you tell that 7.630 and 7.63 are equivalent decimals?
Leona [12618]
An equivalent decimal represents the same quantity as another decimal; here, the 0 does not contribute any value.
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