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3 years ago

Use the substitution method to solve the system of equations: y - 2x = 3; -X = y - 9. Write the answer as a point.

Mathematics

1 answer:

aleksley [76]3 years ago

4 0

Answer:

Hello! I just took the test not too long ago the answer is -3

Have a good day! please mark brainliest!

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What has the sum of 20 but the difference is 8?

arlik [135]

X + y = 20---- 1
x - y = 8----- 2

From 1+2
2x = 28
x = 14
Substitute x in eq.2
14 -y = 8
y = 6

Ans : x= 14 , y= 6

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3 years ago

Which graph is a one-to-one function?

matrenka [14]

Answer:B

Step-by-step explanation:

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2 years ago

Math help 20 points<br> help

astra-53 [7]

Answer:

1. x =8

2. x=9

Step-by-step explanation:

Since these figures are parallelograms, the opposite sides are equal.

1. 6 = 2x-10

Add 10 to each side

6+10 = 2x-10+10

16 = 2x

Divide each side by 2

16/2 = 2x/2

8 =x

2. x+14 =23

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x+14-14 = 23-14

x = 9

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3 years ago

Please help me TwT<br> Please and Thank you!

Llana [10]

Answer:

Option C (None Of The Above)

Step-by-step explanation:

Given expression = $- (\frac{ - e}{ - f} )$

Lets multiply the numerator and denominator by -1.

$= > - ( \frac{ - e \times - 1}{ - f \times - 1} )$

$= > - ( \frac{e}{f} )$

Now , lets open the brackets.

$= > \frac{ - e}{f}$

But as this expression is not there in the given options , the correct answer will be Option C.

3 0

3 years ago

Read 2 more answers

The ratio of the area of the shaded part to the unshaded part is______.

elena-14-01-66 [18.8K]

Answer: 1 : 3

Shaded area:

$\Longrightarrow \sf Length \ \times \ Breadth = \dfrac{x}{4} \ \times \ x \ = \ \dfrac{1}{4}x^2$

Unshaded area:

$\Longrightarrow \sf Length \ \times \ Breadth = (x - \dfrac{x}{4}) \ \times \ x \ = \ \dfrac{3}{4}x^2$

Ratio of shaded to unshaded:

$\Longrightarrow \sf \dfrac{1}{4} x^2 \ : \ \dfrac{3}{4} x^2 = 1 : 3 \quad (simplified)$

8 0

2 years ago