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vazorg [7]
4 years ago
10

2a=8 A+b=2 Substitution method

Mathematics
1 answer:
andrezito [222]4 years ago
4 0
2a=8 /:2
<u>a=4</u>

a+b=2
4+b=2
b=2-4
<u>b=-2</u>

I hope this is the answer you were looking for.

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5x + 6(x - 2) - 8 (x - 3)
Alex Ar [27]

Answer:

The value of x=-4. The figure is also attached below.

Step-by-step explanation:

Considering the expression

5x + 6(x - 2) - 8 (x - 3)

If we have to find the vale of x, then

5x + 6(x - 2) - 8 (x - 3)=0

5x+6x-12-8\left(x-3\right)=0

5x+6x-12-8x+24=0

3x+12=0

\mathrm{Subtract\:}12\mathrm{\:from\:both\:sides}

3x+12-12=0-12

3x=-12

\mathrm{Divide\:both\:sides\:by\:}3

\frac{3x}{3}=\frac{-12}{3}

x=-4

Therefore, the value of x=-4. The figure is also attached below.

Keywords: equation

Learn more about equation solution from brainly.com/question/13678520

#learnwithBrainly

5 0
4 years ago
Gracie has 5 quarters 4 nickels and 1 penny in her pocket. She selects a coin at random. What is the probability of selecting a
irina1246 [14]

Answer:

2/5

Step-by-step explanation:

5+4+1 = 10. If you have 4 nickels out of 10 coins, it means there is a 4/10 chance of selecting one, but to simplify, 2 is the greatest common factor, so you would divide each number.

4/2 = 2.

10/2 = 5.

The answer is 2/5.

3 0
4 years ago
A car dealer recently sold five cars for the following profits: $10,126, $9,999, $12,398, $12,007, and $4,567. What was the mean
Vikentia [17]
Mean or Average is all of the sums divided by how many of the choices are there, so all of 10,126+9,99+12,398+12,007+4567=49097 and divided by all the choices you have which is 5 is 9819.4
7 0
4 years ago
Read 2 more answers
Solve for z <br> az+17=−4z−b
pychu [463]

Answer: 17/5

Step-by-step explanation: isolation the variable by dividing each side by factors that don't contain the variable. z=−b5−17

7 0
4 years ago
Timothy is an hourly employee and he can work maximum of 40 hours in a week. If the weekly salary depends on the number of hours
Gennadij [26K]

Answer:

C

Step-by-step explanation:

 0 ≤ h ≤ 40, h ∈ R

Hope this helps :)

7 0
2 years ago
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