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Anestetic [448]
3 years ago
10

Toby skated from his house to the beach at a constant speed of 8 kilometers per hour, and then skated from the beach to the park

at a constant speed of 7 kilometers per hour. The total distance Toby skated was 20 kilometers, and it took him twice as long to get to the park. Let b be the number of hours it took Toby to skate from his house to the beach, and p the number of hours it took him to skate from the beach to the park. Which system of equations represents this situation?
Mathematics
1 answer:
german3 years ago
8 0

Answer:

8b+7p=20

p=2b

Step-by-step explanation:

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7. What is the solution to-(6m+ 8) = 4(17 - m)?
boyakko [2]

Answer:

-38

Step-by-step explanation:

So we have the equation:

-(6m+8)=4(17-m)

On the left, distribute. On the right, distribute also. So:

-6m-8=68-4m

Add 6m to both sides:

-8=68+2m

Subtract 68 from both sides:

-76=2m

Divide both sides by 2:

m=-38

And we're done!

3 0
3 years ago
Which figure could be rotated the least amount of degrees to be carried onto itself
jeka94
Regular octagon.
Regular shapes take the least amount of degrees to rotate on themselves. However, out of all of them, the octagon has the most sides and thus also the least amount of degrees in rotating.

Hope this helps :)
8 0
3 years ago
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HELP ME HELP ME HELP ME!!! Given f(x) below, find f^-1(x).
elixir [45]

Answer:

f^{-1} (x) = 6 - 4x

Step-by-step explanation:

let y = f(x) and rearrange making x the subject

y = - \frac{1}{4} x + \frac{3}{2} ( multiply through by 4 to clear the fractions )

4y = - x + 6 ( subtract 6 from both sides )

4y - 6 = - x ( multiply through by - 1 )

- 4y + 6 = x

Change y back into terms of x with x = f^{-1} (x) , then

f^{-1} (x) = 6 - 4x

7 0
2 years ago
LOOK AT PICTURE, WHOEVER HAS CORRECT ANSWER, I WILL MARK BRAINIEST :)
Sauron [17]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
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Help me please and thank you
SVETLANKA909090 [29]

Answer:

i HoNesTlY doNT kNow BuT thANks 4 tHe pONIts

Step-by-step explanation:

Just answer the question

3 0
2 years ago
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