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KIM [24]
3 years ago
15

Can someone help me? ​

Mathematics
1 answer:
Natali5045456 [20]3 years ago
4 0

Answer:

For 7 miles, it would take her 63 minutes (an hour and 3 minutes) to run

Step-by-step explanation:

it takes her 9 minutes to run one mile, therefore if you take 9×7 you get 63. It would take her 234 minutes to run the 26 mile marathon.

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2?

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2 years ago
What are the x-intercepts of the quadratic function? f(x)=x^2+6x−27
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Estimate: √106 <br> A. 9<br> B. 10<br> C. 11<br> D. 12
marshall27 [118]
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3 0
3 years ago
I NEED THIS ASAP about the Pythagorean
Natalija [7]

Answer: 24.49 or 24.5 if rounded.

Step-by-step explanation: We have to use the pythagorean theorem of course...

a² + b² = c²

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8 0
3 years ago
A number increased by 4 is the same as 19 minus 2 times the number
ElenaW [278]

Hello from MrBillDoesMath!

Answer:

n = 5


Discussion:

Let the original number be "n"  Translating the problem  statement to mathematical symbolism:

n + 4 = 19 - 2n                   =>  add 2n to both sides

n + 2n + 4 = 19 - 2n + 2n  =>  combine like terms

3n + 4 = 19                        => subtract 4 from both sides

3n = 19 -4  = 15                 => divide both sides by 3

n = 15/3 =5


Check: Does 5 +4 = 19 - 2(5)? Does 9 = 9? Yes. so the value for n is confirmed correct.


Thank you,

MrB

6 0
3 years ago
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