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Rina8888 [55]
2 years ago
14

How much longer does it take to travel 100 kilometers at 65 km/h than at 70 km/h?

Mathematics
1 answer:
Vlada [557]2 years ago
5 0

Answer:

6 minutes and 35 seconds

Step-by-step explanation:

65 km/h will take you 01:32:18 to travel 100 kilometers

70 km/h will take you 01:25:43 to travel 100 kilometers

subract 01:25:43 from 01:32:18 and you have 6 minutes and 35 seconds

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What is the solution to the equation?
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Solution of the equation: x=6\frac{1}{2}

Step-by-step explanation:

The equation that we have to solve in this problem is:

13\frac{3}{4}+x=7\frac{1}{4}

The first step to do is to rewrite the mixed fractions as improper fractions. We have:

13\frac{3}{4}=\frac{13\cdot 4+3}{4}=\frac{52+3}{4}=\frac{55}{4}

And

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So the equation becomes

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Now we multiply by 4 each term on both sides, and we get

29+4x=55

Now we subtract 29 from both sides,

4x=55-29=26

And finally, we divide both sides by 4:

x=\frac{26}{4}=\frac{13}{2}=6\frac{1}{2}

Learn more about equations:

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PLEASE HELP ASAP!!! A talent competition on television had five elimination rounds. After each elimination, only one-third of th
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there's no numbers to answer this question

Step-by-step explanation:

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