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ANTONII [103]
3 years ago
15

Round 0.866 to the nearest tenth​

Mathematics
2 answers:
ozzi3 years ago
8 0

Step-by-step explanation:

.85 and up rounds up to 9

Scilla [17]3 years ago
4 0

To round 0.866 to the nearest tenth consider the hundredths' value of 0.866, which is 6 and equal or more than 5. Therefore, the tenths value of 0.866 increases by 1 to 9.

The answer is <u><em>0.9</em></u>

plz mark me as brainliest if this helped :)

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Please explain how to do this, I'm using all my points<br><br>A. 40 L<br>B. 80 L<br>C. 4 L <br>D. 8L
exis [7]

Answer: choice A. 40 liters

====================================

Explanation:

x = number of liters of the 50% alcohol solution

If we have x liters of 50% alcohol, then we have 0.50*x liters of pure alcohol. This is added to 0.90*40 = 36 liters of pure alcohol (from the 90% solution).

So far we have 0.50*x + 36. This expression represents the total amount of pure alcohol. We want a 70% solution, so we want 70% of the total 40+x meaning 0.50*x + 36 is to be set equal to 0.70*(40+x) and we solve for x as shown below

0.50*x + 36 = 0.70*(40+x)

0.50*x + 36 = 0.70*(40)+0.70*(x)

0.50*x + 36 = 28+0.70*x

36 - 28 = 0.70*x - 0.50x

8 = 0.20x

0.20x = 8

x = 8/0.20

x = 40

So that is why the answer is choice A. 40 liters

6 0
2 years ago
−4(m+6)=−8 plz answer
dangina [55]

Answer:Divide both sides by the numeric factor on the left side, then solve.

m

=

−

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Step-by-step explanation:

5 0
3 years ago
Last year, Dale mowed the lawn in 45 min. This year, it took Dale 38 min to mow the lawn. What is the percent of decrease in mow
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3 years ago
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