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elena-s [515]
3 years ago
13

John completes a long distance run at an average speed of 8.5 miles per hour. if it takes him 6 hours, how far did he run?

Mathematics
1 answer:
anygoal [31]3 years ago
4 0
Fifty One miles is correct
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In step 2 the 6(1 * x) is supposed to be 6 * 6x.
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What two numbers multiply to -8 and add to -4
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Answer:

  -2-2√3, -2+2√3

Step-by-step explanation:

Let x represent one of the numbers. Then the other number is -4-x. We want the product to be -8:

  x(-4-x) = -8

  -4x -x^2 = -8 . . . . . eliminate parentheses

  x^2 +4x = 8 . . . . . . multiply by -1

  x^2 +4x +4 = 12 . . . add 4 to complete the square

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The two numbers are -2-2√3 ≈ -5.4641, and -2+2√3 ≈ 1.4641.

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Answer:

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3(a)+2(o)=34

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3(8)+2(5)=34

Step-by-step explanation:

4 apple's and one orange to get 14 pieces of fruit. 8 apples and 5 oranges to get 34 pieces of fruit.

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Step-by-step explanation:

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