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stich3 [128]
3 years ago
8

Help pls!! 8 1/2 miles in 1/2 hour

Mathematics
1 answer:
katrin2010 [14]3 years ago
8 0

3 minutes per mile.

or

17mph

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jok3333 [9.3K]

Answer:

D(- 1) = 2

Step-by-step explanation:

To evaluate D(- 1), substitute x = - 1 into D(x) , that is

D(- 1) = (- 1)² - 2(- 1) - 1 = 1 + 2 - 1 = 2

6 0
3 years ago
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Find the y-intercept of the following equation. Simplify your answer.<br><br> y = –10x − 8
Andrew [12]

Answer: -8

Step-by-step explanation: because the formula is mx+b=y and the -8 is the b

3 0
2 years ago
___% of $10 = $2<br> Please help me I can not figure it out <br> I need it please
kherson [118]

Answer:

20 :)

Step-by-step explanation:

5 0
2 years ago
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How many solutions does the equation 4x + 8 = − 2 − 2 + 5x have?
ikadub [295]

Answer:

12 =x

There is one solution

Step-by-step explanation:

4x + 8 = − 2 − 2 + 5x

Combine like terms

4x+8 = -4+5x

Subtract 4x from each side

4x-4x+8 = -4+5x-4x

8 = -4+x

Add 4 to each side

8+4 = -4+4+x

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6 0
3 years ago
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Joe's canoe charges an initial fee of $20 plus $4 an hour. Callie's canoe charges a flat rate of $14 an hour find the number of
irinina [24]
Initial fee charged by Joe's canoe = $20
Hourly charge of Joe's canoe = $4
Hourly charge of Callie's canoe = $14
No initial fee is taken by Callie's canoe.
Let us assume the number of hours after which both places charges will be the same = x hours
Then
20 + 4x = 14x
20 = 14x - 4x
20 = 10x
x = 20/10
   = 2
So after 2 hours the charges taken by both of them will be the same. I hope the procedure is easy and clear enough for you to understand.
3 0
3 years ago
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