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Naddika [18.5K]
3 years ago
5

Alyn drives 20.4 miles in 17 minutes.

Mathematics
1 answer:
Galina-37 [17]3 years ago
5 0

Answer:

  • 12 mph

Step-by-step explanation:

<em>Speed = distance/time</em>

  • Distance = 20.4 miles
  • Time = 17 minutes = 17*1/60 hours = 17/60 hours

<u>Speed is:</u>

  • 20.4 : 17/60 =
  • 20.4*60/17 =
  • 72 mph

<u>Alyn exceeded the limit by:</u>

  • 72 - 60 = 12 mph
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Step-by-step explanation:

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Answer:

7 Hours 12 Minutes

Step-by-step explanation:

So they one of the printer increases at a rate of 1/12 and the other increases at a rate of 1/18. Since you don't know the time it actually takes, you will replace both numerators with and x. (x/12 and x/18). You want to set these up so that they are adding. (x/12 + x/18=1). Since you're adding, you want to change it to the same denominator. The lowest is 36 so you multiply x/12 by 3/3 (so you don't unbalance the equation) and x/18 by 2/2. You'll end up with 3x/36 + 2x/36= 1 which will simplify to 5x/36=1. Multiply each side by 36 to leave the variable by itself. It becomes 5x=36 and when you divide it by 5 you get 7.2. So it's seven and .2 hours, which is equivalent to7 and 1/5 of an hour or 7 hours and 12 minutes.

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3 years ago
Pls help i might give brainliest
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Answer:

60% I hope I help :) have a great day

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2 years ago
Osie has been reading a 314-page book for two days. On the first day, she read 73 pages, and on the second day she read 68 pages
olga55 [171]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ She has 173 pages left to read.

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~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

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so, we had "x"
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if we subtract all those figures, and solve for "x",
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notice, if we subtract what Mary took, and Kate, and the sold and leftover, from the original "x", we would end up with no pies :)

so.. just solve for "x"
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