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ZanzabumX [31]
3 years ago
15

X+31=2(x+21) solve for x

Mathematics
2 answers:
Soloha48 [4]3 years ago
5 0

Answer: x=-11


Step-by-step explanation:

x+31=2(x+21),

x+31=2x+42

x+31-31=2x+42-31

x=2x+11

x-2x=2x+11-2x

-x=11

x=-11

Usimov [2.4K]3 years ago
3 0

x+31=2(x+21)

distribute

x+31 = 2x+42

subtract x from each side

31 = x+42

subtract 42 from each side

-11 =x

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Graph y ≥ -x^2 +1 Click on the graph until the correct graph appears.
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Answer:

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3 0
4 years ago
There are 9cans that can store 45 tennis balls what is the constant of the proportionality for this situation
Lapatulllka [165]
Let the total number of cans be x and the total number of tennis balls be y,

Since increasing the total number of cans causes the total number of tennis balls to increase too, x and y is direct in proportion.

Let the constant be k,
y = kx
45 = k9
k = 45/9
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The constant of the proportionality for this situation is 5.
4 0
4 years ago
Two fewer than a doubled number is the same as the number decreased by 38. Find the number.
stiv31 [10]
Answer is 2n -2 = n-38

Reason
2 fewer means (-2) than
A doubled number is (2n)
Same as is (=)
The number decreased by 38 is (n-38)
Combine these
2n-2=n-38
4 0
2 years ago
In questions 1-5, help the developer name the streets if the entrance street is y=2/3x-7, by using the patterns you discovered i
natali 33 [55]
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2.</span><span>oak street (parallel)
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4.</span><span>panther street (Neither)
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I'm not 100% sure with the names because I was getting confused but I put what type of line it was so you can check the name yourself.

</span>
3 0
3 years ago
Part A: Solve –vp + 40 &lt; 95 for v. Show your work. Part B: Solve 8w – 3r = 45 for r. Show your work.
Darya [45]

Part a

-vp + 40<95

-vp +40-40 <95-40

-vp < 55

-vp/p < 55/p

-v< 55/p

(-1)(-v) < (-1) (55/p)

v< -55/p


Part b

8w-3r=45

8w-8w-3r = 45-8w

-3r = 45-8w

-3r/-3 = 45-8w/-3


8 0
3 years ago
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