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Olenka [21]
2 years ago
6

Evaluate the expression when m= -2.8 and n=-6.3. 4n - 6m

Mathematics
1 answer:
Alex73 [517]2 years ago
5 0
Answer is 42, hope this helps
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A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The prem
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Answer:

  • premium: 165 gallons
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Step-by-step explanation:

Let 'a' represent the amount of 95% antifreeze in the mix. Then the amount of water is (285 -a). The mix has this amount of antifreeze in it:

  0.95a +0(285 -a) = 0.55(285)

  a = 0.55/0.95(285) = 165 . . . gallons of 95%

  285 -a = 285 -165 = 120 . . . . gallons of water

There are 120 gallons of water and 165 gallons of premium antifreeze in the mixture.

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2 years ago
the men's world record for the high jump is 2.45 meters. A puma can jump about 1.9 times as high. what is the highest a puma can
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U could answer that question by adding 2.45+1.9=4.35
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3 years ago
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I think the right answer is F
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3 years ago
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olasank [31]

Answer:

B.

Step-by-step explanation:

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The only answer that has both the arrow going right ( Look at the sign) and the open dot ( less than or equal to and greater than or equal to always have an open dot) is B.

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What is an equation of the line that passes through the point (-3, -8) and is
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