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liberstina [14]
3 years ago
6

Kelly skated 4 laps in 86 seconds. Which of the following is an equivalent rate of skating?

Mathematics
1 answer:
ikadub [295]3 years ago
3 0

Answer:

D: 10 laps in 215 seconds

Step-by-step explanation:

86/4 = 21.5 seconds per lap

I went through and multiplied each lap number by the time per lap and the last one, D is the right answer!

Have an amazing day!

Please rate and mark brainliest!

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condensation, decreases trust me is right

Step-by-step explanation:

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4 years ago
At tire depot , a pair of new tires sells for $216. The managers special advertises the same tires at a rate of $380 for 4 tires
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3 years ago
Answer this question
Murljashka [212]

Answer:

a = p * q

b = p * s + q * r

c = r * s

Step-by-step explanation:

In the trinomial ax² + bx + c

a is the coefficient of x²

b is the coefficient of x

c is the numerical term

∵ The trinomial is ax² + bx + c

∵ Its factors are (px + r) and (qx + s)

∴ ax² + bx + c = (px + r)(qx + s)

∵ (px + r)(qx + s) = (px)(qx) + (px)(s) + r(qx) + (r)(s)

∴ (px + r)(qx + s) = pqx² + (psx + qrx) + rs

∴ ax² + bx + c = pqx² + (ps + qr)x + rs

→ By comparing the two sides

∵ ax² = pqx² ⇒ divide both sides by x²

∴ a = pq

∵ bx = (ps + qr)x ⇒ Divide both sides by x

∴ b = ps + qr

∴ c = rs

∴ a = p * q

∴ b = p * s + q * r

∴ c = r * s

5 0
3 years ago
Write repeating decimal 0.027272727 ... as a fraction.
Andrews [41]

Answer:

3/110

Step-by-step explanation:

x = .0272727 repeating

Multiply by 100

100x = 2.727 repeating

Subtract the first equation from the second

100x = 2.727 repeating

-x = .0272727 repeating

------------------------------------

99x = 2.7

Divide each side by 99

99x/99 = 2.7/99

x = 27/990

x =3/110

4 0
3 years ago
Read 2 more answers
Show your work and explain 100 points
jok3333 [9.3K]

Answer:

The answer is D

Step-by-step explanation:

Pi is 3.14. Multiply that by 10, and you get 31.4. The rectangle pan is 70 inches. Hope this helps.

5 0
2 years ago
Read 2 more answers
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