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Nitella [24]
2 years ago
8

Seven less than three times a number is 5. Find the number

Mathematics
2 answers:
Anit [1.1K]2 years ago
7 0

Step-by-step explanation:

it is 12 because 12 - 7 is 5 the number 4 is the number multiplied by 3

bagirrra123 [75]2 years ago
5 0

<u>Answer</u>:

the number is 4

<u>Explanation</u>:

let the number be b :)

3b - 7 = 5       { three times a number; seven less of that number; is 5 }

3b = 5 + 7      { changed sides }

3b = 12          { divide both sides by 3 }

b = 4              { final answer }

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Travka [436]

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120 miles

Step-by-step explanation:

we know that

The speed is equal to the distance divided by the time

Let

s------> the speed in mph

d-----> the distance in miles

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s=d/t

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d=s*t

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s=x mph

t=4 h

substitute

d=4x -----> equation A

<em>It will take Adam 2.5 times less time if driving 45 mph faster</em>

so

s=(x+45) mph

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substitute

d=1.6(x+45) -----> equation B

equate equation A and equation B

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Answer:

C. 3j^{3}l

Step-by-step explanation:

1) First you cancel k^{2} because they are completely the same. then you take out the constants and simply.

2)You then have to use the Quotient Rule:

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You should have ...

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5) Use Rule of One: x^{1} =x

Answer is !!!

3j^{3} l

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