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satela [25.4K]
3 years ago
13

Two friends leave their houses at the same time and run across town towards each other. The first friend runs at a speed of 8 mi

les per hour. The second friend runs at a speed of 7 miles per hour. If they left at 6 p.m. and their houses are 20 miles apart, at what time will they meet?
Mathematics
2 answers:
GalinKa [24]3 years ago
5 0
2 and a half hours estimate
Anna35 [415]3 years ago
3 0

Answer:

7:20 PM.

Step-by-step explanation:

7mph+8mph=15mph

It at least has to be 1 hour(since 15 is one hour and we need 20)

double 15 and we get 30.

if you count by fives starting from 15 to 30, you should get 3.

Now, divide 60 to 3 and you get 20 min.

So, 1 hour plus 20 min is 7:20

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IrinaK [193]
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a) We then simplify it by multiplying the numbers inside the parenthesis by 8.

a) 24a+40

Now we ask ourselves, is this equivalent to 24a+40? YES! 

So your answer for #46 is a)   8(3a+5)


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4 years ago
The work of a student trying to solve the equation 3(4x − 2) = 9 + 2x + 5 is shown below:
galina1969 [7]
Step 1 gives you 
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When you remove the brackets what you get is
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So the answer is 2) <<<< answer.
8 0
3 years ago
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Minchanka [31]

Answer:

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hope this helps

have a good day :)

Step-by-step explanation:

4 0
3 years ago
Help match them with the answer I would really appreciate it
Ratling [72]

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3 years ago
Which fraction is equivalent to 825/1020
sweet [91]
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