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Nana76 [90]
3 years ago
13

Solve the equation for y 9x - 3y = 12

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0
3y = 9x - 12
y = 3x - 4

i am a mathematics teacher. if anything to ask please pm me
liberstina [14]3 years ago
8 0
I think its 1 for both<span />
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What do you do with the exponents when dividing powers with the same base
DerKrebs [107]

Answer:

When dividing numbers with the same base, you subtract the exponents.

Step-by-step explanation:

For example, 8^5/8^3 = 8^2 or 64

4 0
3 years ago
3. A sign company is building a sign with the dimensions shown. What is the area, in square feet, of the sign? Round to the near
Aleks04 [339]

Answer:

84.87sq ft

Step-by-step explanation:

Let ABC be the triangle and  AD be the perpendicular on BC such that BD=DC=7ft.

Now, it is known that \frac{DC}{AC}=cos60^{0}

AC=\frac{7}{\frac{1}{2}}

AC=7ft

Now, in triangle ADC, we have

(AC)^{2}=(AD)^{2}+(DC)^{2}

(14)^{2}=(AD)^{2}+(7)^{2}

196-49=(AD)^{2}

AD=12.12ft

Now, area of the triangle=\frac{1}{2}{\times}b{\times}h

=\frac{1}{2}{\times}14{\times}12.12

=84.87sq ft

Thus, area of the building is 84.87sq ft.

8 0
3 years ago
Question 3,4&amp;5 Cindy bought a car for $21,330. A few years later she sold the car for $19,700.find the percent of change in
san4es73 [151]

The change in value was 8% which amounts to $1630

Further explanation:

The change in value is calculated by using the initial price and selling price of the car.

Given

Purchase Price = P = $21330

Selling Price = S = $19700

As the selling price is less than the purchase price, Cindy had loss.

Loss=L= Cost\ price-selling\ price\\=21330-19700\\=\$1630

Percentage of loss will be calculated as:

Percent\ loss=\frac{1630}{21330}*100\\=8\%

The change in value was 8% which amounts to $1630

Keywords: Loss, Percentage loss

Learn more about profit and loss at:

  • brainly.com/question/1563227
  • brainly.com/question/1560475

#LearnwithBrainly

6 0
3 years ago
Which fraction is not equivalent to 9/12
Usimov [2.4K]

Answer: 1/2

1/2 = 50%

9/12 = 75%

6 0
3 years ago
Read 2 more answers
Else's dad is a policeman. One afternoon her dad stopped 19 people for speeding. This was 12 more than the previous day and 7 mo
vekshin1
I'm pretty sure that the answer is 71, hope it helped!
6 0
3 years ago
Read 2 more answers
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