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Leona [35]
3 years ago
8

PLEASE ANSWER THIS QUESTION Show that 4x – 7 is equivalent to 4(x - 1) – 3 when x = 3.​

Mathematics
1 answer:
Drupady [299]3 years ago
7 0

Answer:

4(3) - 7 = 4(3 - 1) - 3

12 - 7 = 4(2) - 3

5 = 8 - 3

= 5

They are equivalent because when they are both simplified they have the same answer 5

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The day of the 52-mile double marathon is finally here! Pepe has set the ambitious goal of averaging an 8-minute mile. Pepe fini
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Answer:

221 minutes

Step-by-step explanation:

His goal is 8 minutes or less for every mile during the marathon.

8 x 52 = 416

That gives him 416 total minutes to complete the marathon goal.

He already ran the first half in 195 minutes, so we do this to find the time for the other half:

416 - 195 = 221

He has 221 minutes in the second half of the marathon to meet his goal.

5 0
2 years ago
Y is directly proportional to x, and y =216 when x=2 find y when x=7
jek_recluse [69]
Y = kx
@ y = 216, x = 2
k = y/x = 216/2 = 108

@ x=7
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Answer:

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Step-by-step explanation:

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7 0
3 years ago
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a_sh-v [17]

Answer:

-720

Step-by-step explanation:

10x^3y^2    If x = -2 and y = -3

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6 0
3 years ago
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Select the numbers that have a factor of 5. Mark all that apply.
faust18 [17]

Answer:

a number ending in 0 or 5 has a factor of 5

Step-by-step explanation:

5 is a factor of

5, 10, 15, 20, 25...

any number that ends in 0 or 5 would qualify

5 0
3 years ago
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