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dexar [7]
3 years ago
15

Twice the difference between a number and 4 is twenty. Find the number.

Mathematics
2 answers:
kogti [31]3 years ago
7 0

Answer:

D 14

Step-by-step explanation:

Let x be the number

2(x-4) = 20

Divide each side by 2

2/2(x-4) = 20/2

x-4 = 10

Add 4 to each side

x-4+4 = 10+4

x = 14

Vikki [24]3 years ago
5 0

Answer:

The number is 14

Step-by-step explanation:

Let's call this unknown number of x:

2×(x – 4) = 20

2x – 8 = 20

2x = 20 + 8

2x = 28

x = 28/2

x = 14

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Nezavi [6.7K]

Answer:

Step-by-step explanation:

Garage A = 7+3t

Garage B = 4+4t

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5 0
2 years ago
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A corporate team building event costs $2 for every attendee. If there are 8 attendees how much will the corporate team building
lesantik [10]

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16$

Step-by-step explanation:

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I hope this helps!!!

7 0
3 years ago
Find the derivative of f(x) = 8x^2 + 11x at x = 7.
sleet_krkn [62]
Thank you for posting your question here at brainly. Feel free to ask more questions.  

f′(x)=2∗(8x(2−1))+1∗11x(1−1)

which is

f′(x)=16x+11

then let x = 7 gives us

f′(7)=123

      <span>
<span>Hope my answer would be a great help for you. </span> </span>  

<span> </span>

6 0
3 years ago
Compare. Write <br> 1/8 6/10
PolarNik [594]
The  difference between 1/8 and 6/10 = 0.475 , does this help? 
4 0
2 years ago
140 degrees decreased by 65%
BaLLatris [955]
Hey there! 
<span>Here are the steps involved: 
</span>
1.Change 65% into a decimal. Move the decimal two places to the left and you get 0.65.

2. Multiply 0.65 by 50.
<span>140 x 0.65 = 91.

3. Since you are decreasing 140 by 65%, subtract 140 by 91. 
140-91= 49


</span><span>(If you feel that my answer has helped you, please consider rating it and giving it a thank you! Also, feel free to make the best answer, the brainliest answer!)
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<span>Thank you! :D</span>


7 0
3 years ago
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