Answered

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tonya runs 8 kilometers in 60 minutes. at this rate, how long would it take her to run 2 kilometers?

Sagot :

AkiraNamimori
Here they have told you the extended amount of time and what that would give you. 8 kilometers=60 minutes, yes?
This is a ratio, meaning that you can have mulitiple numbers that mean the same thing.
You would, instead of multiplying like you would for a number larger than you're looking for, would simply divide both sides by the same number so that they'll stay even and balanced, the values unchanged.
So 8 and 60 have a same multiple, 4.
Divide four on both sides to get 2 and 15.
2 would be the number of kilometers you are looking for and 15 would be the number of minutes that Tonya would need to run.
calculista

we know that

Tonya runs [tex]8[/tex] kilometers in [tex]60[/tex] minutes

so

by proportion

Find the time take Tonya to run  [tex]2[/tex] kilometers

[tex]\frac{60}{8}\frac{minutes}{km}=\frac{x}{2}\frac{minutes}{km} \\ \\x*8=60*2\\ \\x=60*2/8\\ \\x=15\ minutes[/tex]

therefore

the answer is

[tex]15\ minutes[/tex]

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