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jarptica [38.1K]
3 years ago
13

If 3/4 of a certain number is equal to 41/2 find the number​

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
7 0

Answer:

x = \frac{82}{3}

Step-by-step explanation:

  • let x be that number

(\frac{3}{4} )x =  \frac{41}{2}

\frac{3x}{4} = \frac{41}{2}

  • multiply both sides by 4

\frac{3x}{4} * 4 = 4 * \frac{41}{2} \\3x = \frac{41 }{2} * 2 * 2\\3x = 41 *2 \\3x = 82 \\

  • divide both sides by 3

\frac{3x}{3} = \frac{82}{3}

x = \frac{82}{3}

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Please can someone help me answer these questions? Would be really grateful if it was done by the 12th of January. Thank you :)
FrozenT [24]
1. 4g= 37-5
 ⇒ 4g= 32
⇒ g= 32/4
⇒ g= 8

2. c= 5*6
⇒ c= 30

3. f+4= 3*5
⇒f+4= 15
⇒ f= 15-4
⇒ f= 11.

4. b+6= 30/5
⇒ b+6= 6
⇒ b= 6-6
⇒ b=0

5. a-5= 60/5
⇒ a-5= 12
⇒ a= 12+5
⇒ a= 17

6. e+2= 45/5
⇒ e+2= 9
⇒ e= 9-2
⇒ e= 7

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⇒ d-5= 4
⇒ d= 4+5
⇒ d= 9

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⇒ m= 4+4
⇒ m= 8

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⇒ q= 6-6
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⇒ h= 8*3
⇒ h= 24

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⇒ x= -3

13. 6p= 2+1
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⇒ p= 3/6
⇒ p= 1/2

14. 2d-7= 27/3
⇒ 2d-7= 9
⇒ 2d= 9+7
⇒ 2d= 16
⇒ d= 16/2
⇒ d=8

15. b-3= 5/2
⇒ b-3= 2.5
⇒ b= 2.5+3
⇒ b= 5.5

16. y-1= 1/3
⇒ y= 1/3+1
⇒ y= 1 1/3

17. 5v= 9-3
⇒ 5v= 6
⇒ v= 6/5
⇒ v= 1.2

18. n-3 = 3*6
⇒ n-3= 18
⇒ n= 18+3
⇒ n= 21

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⇒ t+10= 4
⇒ t= 4-10
⇒ t= -6

20. 3c+4= 3*5
⇒ 3c+4= 15
⇒ 3c= 15-4
⇒ 3c= 11
⇒ c= 11/3
⇒ c= 3 2/3

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