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3 years ago

Which equation has a graph parallel to the graph of 9x + 3y =22?

Mathematics

1 answer:

hram777 [196]3 years ago

7 0

Answer:

y = -3x + 8.3

Step-by-step explanation:

You need to rearrange 9x + 3y = 22 in the form y = mx +c.

9x+3y = 22

3y = -9x +22

y = -3x + 7.3

As long as the gradient is the same, the lines will be parallel. So you can give any number to the intercept (in this case I gave 8.3) and you will have parallel equations.

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60 cars to 20 cars indenify percent of change

Margaret [11]

Answer: -66.67%, but if the answer is supposed to positive then the answer is 66.67%.

<em>* Hopefully this helps:) </em>

7 0

3 years ago

100 Points! What are the classifications of each system?

alexdok [17]

Answer:

Part 1) Is a inconsistent system

Part 2) Is a consistent independent system

Part 3) Is a consistent dependent system

see the attached figure

Step-by-step explanation:

we know that

If a system has at least one solution, it is said to be consistent .

If a consistent system has exactly one solution, it is independent .

If a consistent system has an infinite number of solutions, it is dependent

If a system not have solution, it is said to be inconsistent

Part 1) we have

$x+5y=-2\\x+5y=4$

This system of linear equations has two parallel lines (their slopes are equal) with different y-intercept

The lines don't intersect

The system has no solution

therefore

Is a inconsistent system

Part 2) we have

$y=3x+4\\-2x+y=4$

we know that

If two lines have different slopes, then the lines intersect at one point and the system of equations has one solution

In this problem, the lines have different slopes (m=3 and m=2)

The lines intersect at one point

The system has one solution

therefore

Is a consistent independent system

Part 3) we have

$3x+y=4$ ----> equation A

$-6x-2y=-8$ ----> equation B

Multiply equation A by -2 both sides

$-2(3x+y)=-2(4)$

$-6x-2y=-8$ ----> equation C

Compare equation B and equation C

Are identical lines

The system has infinity solutions

therefore

Is a consistent dependent system

4 0

3 years ago

Evaluate \dfrac{e}{4}+2f-3 4e +2f−3 when e=12e=12 and f=\dfrac12f= 21<br>

dusya [7]

Answer:

\frac{13+\left(-3\right)^2+4\left(-3\right)+1-\left(-10-\left(-6\right)\right)}{\frac{\left(4+5\right)}{\left(4^2-3^2\left(4-3\right)-8\right)}+12}=5

Step-by-step explanation:

7 0

3 years ago

This is uhh due by 8 tommorow mornin please help me

Ira Lisetskai [31]

1 Simplify

x to

≤

−

+5≤−4

2 Subtract

5 from both sides.

≤

−

≤−4−5

3 Simplify

−

−4−5 to

−

−9.

≤

−

≤−9

4 Multiply both sides by

≤

−

x≤−9×3

5 Simplify

9×3 to

27.

≤

−

x≤−27

I hope this help you

6 0

3 years ago

Alice is playing checkers against a computer and has won 8 games out of the 12 she’s played so far

den301095 [7]

I do not know what kind of answer you may want but here is a few you might be asking for

(1). Every 12 games Alice wins 8 games and looses 4. ( 8/12 )

(2). Alice wins 2/3 games against a computer. ( 8/12 )

(3). Alice wins 66% of games she plays against a computer.

There you go.

3 0

3 years ago