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Liono4ka [1.6K]
3 years ago
10

Seven times the difference of some number and 1 amounts to the quotient of 168 and 12

Mathematics
1 answer:
rjkz [21]3 years ago
5 0

Answer:

7 (x - 1) = 14

gives:   x = 3

Step-by-step explanation:

Let the number be x

According to Given conditions:

  • Difference of some number and 1 = x - 1
  • Seven times the difference of some number and 1 = 7 (x - 1)
  • Quotient of 168 and 12 = 168/12 = 14

According to given scenario:

7 (x - 1) = 14

Dividing both sides by 7

(x - 1) =2

Adding 1 on both sides:

x -1 +1 = 2 + 1

x = 3

I hope it will help you!

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Find the perimeter of a rectangle of which length is 5 more than the width
Leokris [45]

Answer:

<em>the</em><em> </em><em>perim</em><em>eter</em><em>=</em><em> </em><em>1</em><em>0</em><em>+</em><em>4</em><em>W</em><em>.</em>

<em>where</em><em> </em><em>W</em><em>=</em><em> </em><em>the</em><em> </em><em>wid</em><em>th</em><em>.</em>

Step-by-step explanation:

mathematically, perimeter (p)= 2L +2W

where L= length.and W=width

<em>from</em><em> </em><em>the</em><em> </em><em>exp</em><em>ression</em><em> </em><em>;</em><em>length is 5 more than the width</em>

<em>it</em><em> </em><em>is</em><em> </em><em>wri</em><em>tten</em><em> </em><em>as</em><em> </em>L = 5+W

<em>sub</em><em>stitute</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>formu</em><em>la</em><em> </em>

P= 2(5+W)+2W

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Step-by-step explanation:

4 0
3 years ago
(12f^2-9f+15)-(-4f^2-3f+6) subtract.
german
So what you do is distribute the invisible -1 in front of the second parenthasees set and add like terms
remember
x^2+3x^2=4x^2
-(3+4x-x^2)=-1(3x+4x-x^2)=-3-4x+x^2

so first distribute the negative 1
-1(-4f^2-3f+6)=4f^2+3f-6
add
12f^2-9f+15+4f+3f-6
group like terms
12f^2+4f^2-9f+3f+15-6
add
16f^2-6f+9

aswer is 16f^2-6f+9

8 0
3 years ago
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