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Vikki [24]
3 years ago
12

HELP ME PLEASE!!!!!!!!!!4(a+2)=8+4a

Mathematics
2 answers:
user100 [1]3 years ago
4 0
All real numbers are correct! Hope that helps.
Natasha2012 [34]3 years ago
4 0

Answer:

a can be anything. There are infinite solutions.

Step-by-step explanation:

4(a+2)=8+4a

Expand:

4a+4\times\:2=8+4a

4a+8=8+4a

Subtract 8 from both sides:

4a+8-8=8+4a-8

4a=4a

Subtract 4a from both sides:

4a-4a=4a-4a

0=0

Since both sides are equal, a has infinite solutions as no matter what value it is, it will not affect the end result of 0=0 which is true.

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HElp me please!!! IVE HAD TROUBLE W THIS SINCE 11
Neporo4naja [7]

Answer:

Nocomplanar? Right because they’re not all in the same place?

Step-by-step explanation:

7 0
3 years ago
PROBLEM: Juan hires an electrician. Juan pays a one-time fee of $30. Juan also pays $45 for each hour the electrician works. A.
PolarNik [594]

Answer:

A: C=45h+30

B: C=$322.50

Step-by-step explanation:

A: We'll start with the equation for the total charge. Juan is saying he will pay a one time fee of $30, meaning there is 30 dollars added to what ever the hourly wage is. This can be represented by the +30. Now if "h" represents the variable for which the hourly wage will be calculated, and he pays $45 dollars per hour this will be represented as 45h. <em>As an example if I pay you 2 dollars per hour using the same variable "h", this would be represented as 2h. So if you worked for two hours you would get 4 dollars, this is proven by the fact the 2(2) (remeber im replacing the "h" with the hours you worked) obviously 2 times 2 is 4 proving my point. </em>This information will give you the equation you see above.

B: Onto solving for how much Juan will pay. Now you say youre supposed to have 9 answer but this can't be true. All you need to do is plug the hours given into "h" and solve the equation. It should look something like:

<u>C=45h+30</u>

<u>C=45(6.5)+30</u>

Im using a decimal because it should be clear 1/2=0.5

<u>C= 292.5+30</u>

45x6.5 always go with PEMDAS, we are multiplying first. Then add 292.5 plus 30

This results in the answer of:

<u>C=$322.50</u>

3 0
3 years ago
ILL GIVE U BRAINLYIST IF U GET IT RIGHT
yawa3891 [41]

Answer:

34

Step-by-step explanation:

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2 years ago
How to find the scale factor, ratio of area, &amp; ratio of volume?
Andreas93 [3]

Step-by-step explanation:

If the scale factor of two similar solids is a: b:. then

(1) the ratio of corresponding perimeters is a:b

(2) the ratio of the base areas, of the lateral areas, and of the total areas is a^2: b^2

(3) the ratio of the volumes is a^3:b^3

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3 years ago
Graph the system of equations.
Marat540 [252]
You can soustracte the first or the second one

and y cancel

x = 6

now you put 6 in x
you can take the first or the second one

6 - y = -2
6 - y = -2
y = -8
8 0
3 years ago
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