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algol13
2 years ago
15

Leo is running in a 5-kilometer race along a straight path. If he is at the midpoint of the path, how many kilometers does he ha

ve left to run?
Mathematics
1 answer:
hammer [34]2 years ago
7 0

Answer:

2.5 km left

The midpoint is half of 5, which is 2.5, so he'll still have 2.5 km left to complete

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It’s d, looks like you got it already! With ratios, just pay attention to not only the numbers but order of the words as well, so you can be sure the ratio follows the problem.
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How to solve word problems
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<span>Read the problem entirely.
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List information and the variables you identify.
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The ratio for 18 girls to 27 boys as a fraction is
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18/27 is the fraction you just said it

5 0
2 years ago
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Substitute 2m + n =0 and m + 2n =3
melamori03 [73]

There are several ways you can solve this problem if you're trying to solve for m and n. You can substitute, or systems of equations. However, I'm going to use substitution:

2m + n = 0 => n = -2m

We can input that in for the other equation:

m + 2n = 3 now becomes: m + 2(-2m) = 3

Now we can solve:

m + 2(−2m) = 3

m + −4m = 3

(m + −4m) = 3 (Combine Like Terms)

−3m=3

m = -1

Now we can input that value in to solve for n:

We said that n = -2m, and m = -1, so n = -2(-1):Answer:

n = 2

Your final answer is m = -1, and n = 2, which can also be written as (m,n) = (-1,2)

----------------------

However, if you were solving for m+n:

You would add the two equations!:

2m + n = 0

m + 2n = 3

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3m + 3n = 3

Now, you can take 3 common:

3(m+n) = 3

m + n = 1

Your final answer for what m + n equals 1!

3 0
3 years ago
SHOW WORK A car travels 174 miles in 3 hours. At this rate, how many miles will the car travel in 12 hour?
polet [3.4K]

Answer:

522 miles

Step-by-step explanation:

174 x 4 = 522

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