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erik [133]
2 years ago
11

How do you solve 2(x+7)+x=20

Mathematics
1 answer:
alexira [117]2 years ago
4 0
2(x+7) + x=20
(2)(x) + (2)(7) + x=20  Distribute 
2x+14 + x =20
(2x+x) + (14) =20  Combine Like Terms 
3x+14=20 
    - 14  -14             Subtract 14 from both sides 
3x = 6 
3x/3 6/3                  Divide Both Sides by 3 
 
x = 2 


Let me know if you still don't understand 

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Point B is on line segment AC. Given AB = 3x, BC =4x+8 and AC = 5x + 10, determine the numerical length of AC
Vlada [557]

Answer:

15

Step-by-step explanation:

determine the numerical length of AC

We know that Ac is equaled to ab and bc because they are the segements between ac  

                3x                                4x+8

A-----------------------------B----------------------------------C

|<----------------------------5x+10 --------------------------->|

AB + BC = AC

solving for x

3x + 4X + 8 = 5X + 10

3x+4x-5x= 10-8

2x=2

x=1

Now sub that in for ac

AC= 5x +10

AC= 5(1) +10

AC= 5 +10

AC = 15

3 0
2 years ago
Jonah is making a model house. The real house is 22 feet tall. His model is 10 inches tall. What is the foot : inch ratio for hi
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Answer:

11: 5

Step-by-step explanation:

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2 years ago
Carla and Vicki left the house at the same
CaHeK987 [17]

I pretty sure the answer is 6.25 hr.

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6 0
3 years ago
A school bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second grade travel
kow [346]

Answer:

5P5×20P15

Step-by-step explanation:

A school bus has 25 seats, with 5 rows of 5 seats.

15 students from the first grade and 5 students from the second grade travel in the bus.

second-grade students occupy the first row.

The 5 students of second grade are to be seated in 5 seats,this can be done in:

5P5 ways where P is the permutation

Now 15 students from first grade are to be arranged in remaining 20 seats

This can be done in:

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Hence, total ways student can be seated is:

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6 0
3 years ago
Aa please help thanks if you do (:
frosja888 [35]
I believe the answer is 60
8 0
2 years ago
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