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schepotkina [342]
3 years ago
7

Kali runs 10 laps around a track each day.Each lap around the track is 400 meters.How many will it take Kali to run a total of 1

2 kilometers
Mathematics
1 answer:
Sindrei [870]3 years ago
8 0

10 laps around a track each day.Each lap around the track is 400 meters.How many days will it take Kali to run a total

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levacccp [35]

Answer: <em>x </em>= 13

Step-by-step explanation:    the equation to solve this is:

4 × (4 + 8) = 3 × (3 + <em>x</em>)

so we solve the first half of that:

4 × (4 + 8)

4 × 12

48

now we have:

48 = 3 × (3 +<em> x</em>)

so we switch the sides to make it easier and solve

3 × (3 + <em>x</em>) = 48

divide both sides by 3

3 × (3 + <em>x</em>) ÷ 3 = 48 ÷ 3

and get

3 +<em> x</em> = 16

now subtract 3 from both sides

3 + <em>x</em> = 16

-3         -3

and finally we get

<em>x </em>= 13

hope this helped :)

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Andrej [43]
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