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mina [271]
3 years ago
10

Twice the difference of a number and 9 is 8​

Mathematics
1 answer:
victus00 [196]3 years ago
3 0

Answer:

13

Step-by-step explanation:

Think: 2(x-9)=8; x = the answer

2(x-9)=8

2x-18=8   (distributive property)

2x=26     (add 18 to both sides)

x=13         (divide both sides by 2)

Hope this answer helps you!

If you don't mind, could you please mark my answer as brainliest, thanks!

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Answer:

Step-by-step explanation:

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4 0
3 years ago
Help me solve this equation and show work <br><br> 11d + 17b = 95 <br> d + b = 7
sweet-ann [11.9K]

Answer:

{d,b}={4,3}

Step-by-step explanation:

[1]    11d + 17b = 95

  [2]    d + b = 7

Graphic Representation of the Equations :

   17b + 11d = 95        b + d = 7  

 

Solve by Substitution :

// Solve equation [2] for the variable  b

 [2]    b = -d + 7

// Plug this in for variable  b  in equation [1]

  [1]    11d + 17•(-d +7) = 95

  [1]    -6d = -24

// Solve equation [1] for the variable  d

  [1]    6d = 24

  [1]    d = 4

// By now we know this much :

   d = 4

   b = -d+7

// Use the  d  value to solve for  b

   b = -(4)+7 = 3

Solution :

{d,b} = {4,3}

4 0
3 years ago
Read 2 more answers
Richard and Georgia both wrote essays.
LenaWriter [7]

Answer: a) Georgia, b) 120 words

Step-by-step explanation:

We can calculate how many words they each wrote by multiplying their time and the rate at which they write words.

Richard: 45*16 = 720 words total

Georgia: 70*12 = 840 words total.

Therefore, Georgia wrote 120 more words.

3 0
2 years ago
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Simply the answer is 7 ounces :D

5 0
3 years ago
4 more than the quotient 12 and a number x
snow_tiger [21]

More than means to add.

Quotient means to divide.

4 + (12/x)

6 0
3 years ago
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