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Step2247 [10]
3 years ago
8

It takes you 31 seconds to walk from the first​ (ground) floor of a building to the third floor. How long will it take you to wa

lk from the first floor to the sixth floor​ (at the same​ pace, assuming all floors have the same​ height)?
Mathematics
2 answers:
never [62]3 years ago
6 0

Step-by-step explanation:

If it takes you 31 seconds to go up 3 floors then it would take you 62 second because half of 6 is 3 and the problem tells you how long it takes to go up 3 floors. So to get 6 floors just double 31 to 62. So it takes 62 second or 1 minute 2 seconds.

Tcecarenko [31]3 years ago
4 0

Answer:

62

Step-by-step explanation:

62 because 1-6 is double of 1-3.

so 31 x 2

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Solve. x2 + 14 = 9x A) x = 2, x = 7 B) x = 3, x = 5 C) x = −2, x = −7 D) x = −3, x = −5
chubhunter [2.5K]

Answer:

A) x = 2, x = 7

Step-by-step explanation:

x^2 + 14 = 9x

Subtract 9x from each side

x^2-9x + 14 = 9x-9x

x^2-9x + 14 = 0

What 2 numbers multiply to 14 and add to -9

-7*-2 = 14

-7+-2 = -9

(x-7)(x-2) = 0

Using the zero product property

x-7 = 0   x-2 =0

x=7   x=2

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3 years ago
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3 years ago
The diffrence of twice a number and 3 is -21
Alika [10]

Answer:

x = - 9

Step-by-step explanation:

Step 1:

2x - 3 = - 21    Equation

Step 2:

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Step 3:

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8 0
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Please refer to the image.
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Answer:

Step-by-step explanation: C

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