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lina2011 [118]
3 years ago
14

Help again!!! answer this

Mathematics
2 answers:
nikklg [1K]3 years ago
8 0
The answer is 7.
x + 8 + 2x - 5 = 10 + 14
x + 8 + 2x - 5 = 24
                + 5 = +5
 x +8 + 2x = 29
     -8             -8
x + 2x = 21
put the x's together
3x = 21
divide
x= 7
 

check 3 x 7 = 21
Arte-miy333 [17]3 years ago
6 0
Same rule as the last problem I solved:
\frac{x + 8}{10}  =  \frac{2x - 5}{14}  \:  \: ... \: cross - multiply \\ 14(x + 8) = 10(2x - 5) \\ 14x + 112 = 20x - 50 \\  - 6x =  - 162
- 6x =  - 162 \\   \frac{ - 6x}{ - 6}  =   \frac{- 162}{ - 6}  \\ x = 27

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Write the equation of the line fully simplified slope-intercept form.
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y=-3/2x+5

Step-by-step explanation:

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Evaluate: 955-105 x 4 +118
drek231 [11]

Answer: −420x+1073

Step-by-step explanation:

Let's simplify step-by-step.

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Combine Like Terms:

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6 0
3 years ago
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Well, I have to write 20 words, so... I think this is enough.
Varvara68 [4.7K]
<h3>Answer: Choice D</h3><h3>m = n</h3><h3>b = sqrt(pi)*a</h3>

=====================================================

Explanation:

Each circle has a radius of 'a'. So r = a.

The area of each circle is pi*r^2 = pi*a^2

The area of each square with side length b is b^2

The two stacks have the same volume only when the circle area is equal to the square area, so whenever pi*a^2 = b^2 is true.

Solving for b leads to b = sqrt(pi*a^2) = sqrt(pi)*a

The stacks must also be the same height for the volumes to be the same, so m = n as well.

6 0
3 years ago
Use the equation below to find y, if m= 8 and x=6.<br> y=mx <br> y=?
Lunna [17]

Answer:

The value of y is 48.

Step-by-step explanation:

You have to substitute the values into the equation :

y = mx

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y = 8 \times 6

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8 0
3 years ago
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