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Trava [24]
3 years ago
11

-4(2x+7) = 2x - 18 Solve for x

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
4 0

Answer:

x = -1

Step-by-step explanation:

-8x - 28 = 2x - 18

      +28  +28

-8x = 2x + 10

  -2x  -2x

-10x = 10

÷-10 ÷-10

x = -1

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Evaluate 3(a + b + c)2 for a = 2, b = 3, and c = 4
Verdich [7]

Answer: 243

Step-by-step explanation:

We have the expression

3(a + b + c)^2

Note that the expression depends on 3 variables

a, b and c

in this case we want to evaluate the expression for

a = 2\\b = 3\\c = 4

Then change the variable a by the number 2, the variable b by the number 3 and the variable c by the number 4

So we have

3(2 + 3 + 4)^2

Now simplify the expression

3(9)^2

3*81=243

The answer is 243

7 0
3 years ago
Read 2 more answers
4x - 35 = 234<br><br> Solve for 'x'.
andrezito [222]

Answer:

X= 67.25

Step-by-step explanation:

4x-35=234

Add 35 to both sides

4x= 269

Divide both sides by 4

X= 67.25

4 0
3 years ago
23.84 to 1 decimal place
Yanka [14]
23.8

you round the 4 down so 8 stays as 8, if it was 23.85 then it would become 23.9
8 0
3 years ago
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A mountain climber descends 3,852 feet over a period of 4 days. What was the average amount of her descent over that period of t
Harrizon [31]
To get the answer, divide 3852 feet by 4 days. That will give you an average of 963 feet per day as your answer.
5 0
4 years ago
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A soup can has a diameter of 6.6cm. The label on the can is 8.8cm high. There is a 1cm overlap on the label. What is the area of
DanielleElmas [232]
Calculate the circumference and then add the 1 cm overlap:

C = pi*(6.6 cm) + 1 cm = 21.7 cm.

Next, mult this C by the height, 8.8 cm:  Total area is 21.7 cm times 8.8 cm, 
or    191.3 cm^3 (answer)
7 0
3 years ago
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