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Ber [7]
3 years ago
15

Vinnie drives his car 210 miles and has an average of a certain speed. If the average speed had been 3mph more, he could have tr

aveled 228 miles in the same length of time. What was his average speed?
Mathematics
2 answers:
monitta3 years ago
6 0

Sorry this took so long.....

Had to get some help from the internet

Have a great day!!!!!

Pachacha [2.7K]3 years ago
5 0

Answer:

35 mph

Step-by-step explanation:

time = distance / speed

210 miles and has an average of a certain speed

t = 210 / s

If the average speed had been 3mph more, he could have traveled 228 miles in the same length of time

t = 228 / (s + 3)

Set equal

210 / s = 228 / (s + 3)

Cross multiply

210s + 630 = 228s

Subtract 210s from both sides

630 = 18s

Divie both sides by 18

35 = s

35 mph

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3 years ago
PLease help and best gets brainliest.
gizmo_the_mogwai [7]
1) Yes, the relationship in the table is proportional. If, when you've been walking for 10 minutes, you are 1.5 miles away from home, and when you've been walking for 20 minutes, you are 1 mile away from home, and when you've been talking 30 minutes, you are 0.5 miles away from home, then we can see that there is a proportion that happens here. For every 10 minutes you walk, you get 0.5 miles closer to your home.

2) We know that you've been walking 10 minutes already at the start of this problem, and we know that you walk at a steady pace of 0.5 miles every 10 minutes, so we just need to add 0.5 miles to our starting point to get the distance from the school to home, which makes it 2 miles away.

3) An equation representing the distance between the distance from school and time walking could be something like this:

t = 20d

Where t is the amount of time it takes to get home (in this case, t = 40 minutes) and d is the distance you can walk in 10 minutes (in this case, 0.5 miles)

The equation is lame, but that's the best I could do :\
Hope that helped =)
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Considering the withdraws and credits, Lucia's current available balance is of $65.53.

<h3>How do we find a balance?</h3>

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More can be learned about balances at brainly.com/question/26867415

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HARD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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