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3 years ago

Which equation represents the line that passes through the points (-1,-2) and (3,10)

Mathematics

1 answer:

anyanavicka [17]3 years ago

8 0

Answer:

(10+2)/(3+1)= 12/4= 3

y +2= 3(x+1)

y +2=3x+3

y = 3x+1

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Write the two missing values to make these equivalent fractions correct : ?/3 = 8/12= 4/?

Elodia [21]

X/3 = 8/12
12 * x = 8 * 3
12x = 24
x = 2

8/12 = 4/y
8y = 48
y = 6

8 0

3 years ago

What is 423 divided by 898?

KiRa [710]

423 divided by 898 is 0.47104677...

Hope I could help! :)

6 0

3 years ago

How to solve the system of equation 500y-600x=2800 , 400y-400x=2400 by elimination

tatiyna

Answer:

$x=2$ and $y=8$

Step-by-step explanation:

Given:

Equation 1:

$500y-600x=2800$

Simplifying the above equation by dividing both sides by 100

$\frac{500y-600x}{100}=\frac{2800}{100}$

$\frac{500y}{100}-\frac{600x}{100}=28\\\\5y-6x=28$

Equation 2:

$400y-400x=2400$

Simplifying the above equation by dividing both sides by 400.

$\frac{400y-400x}{400}=\frac{2400}{400}$

$\frac{400y}{400}-\frac{400x}{400}=6\\\\y-x=6$

Now the system of equation is:

(1a) $5y-6x=28$

(2a) $y-x=6$

Solving by elimination

Multiplying equation (2a) with $-5$

$-5(y-x)=-5\times 6$

(2b) $-5y+5x=-30$

Adding equations (1a) and (2b) in order to eliminate $y$

$5y-6x=28$

+ $-5y+5x=-30$

We get $-x=-2$

∴ $x=2$

Plugging $x=2$ in equation (2a).

$y-2=6$

Adding $2$ both sides.

$y-2+2=6+2$

∴ $y=8$

7 0

3 years ago

13 gallons of water are used to completely fill 3 fish tanks. If each tank holds the same amount of water, how many gallons will

Pepsi [2]

Answer:

4 1/3

Step-by-step explanation:

12/3=4

1/3+4=4 1/3

7 0

3 years ago

Help please WORTH 15 POINTS!

lord [1]

Answer:

Step-by-step explanation:

I think it is 22

6 0

3 years ago

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