All categories

2 years ago

What is the answer to 2y-4x=-18 ?

Mathematics

1 answer:

Ganezh [65]2 years ago

7 0

Answer: y=-2x-9

Step-by-step explanation:

Add 4x to both sides because the slope (-2x) needs to be on the same side as the y-intercept (-9). Then divide everything by 2 to get your answer because you want to get y by itself, since there is two of them. 2y-4x=-18 becomes y=-2x-9.

You might be interested in

Kerri drives $150$ miles to visit her grandmother. She starts off driving $60$ miles per hour, but then encounters road construc

andriy [413]

Answer:

5 hours

Step-by-step explanation:

-150 miles in all

-75 miles per speed

60 mph...

60 miles per hour over 75 miles

75 miles ÷ 60 miles = 1.25 hours

20 mph...

20 miles per hour over 75 miles

75 miles ÷ 20 miles = 3.75 hours

Total hours of driving...

60 mph for 1.25 hours

20 mph for 3.75 hours

3.75 hours + 1.25 hours = 5 hours total

5 0

1 year ago

You know that the average college student eats 0.75 pounds of food at lunch. If the standard deviation is 0.2 pounds of food, th

Fynjy0 [20]

Answer: $53.95

Step-by-step explanation:

Given: $\mu=0.75$ pounds

$\sigma= 0.2$ pounds

n= 50

Two tailed critical z-value for 90% confidence level = 1.645

Let x be the total amount of food that a cafeteria should have on hand to be 90 percent confident that it will not run out of food .

z-score = $\dfrac{x-\mu}{\sigma}$ $=\dfrac{x-0.75}{0.2}$

Then, $\dfrac{x-0.75}{0.2}=1.645$

$x-0.75=1.645\times0.2\\\\\Riightarrow\ x-0.75=0.329\\\\\Rightarrow\ x= 0.329+0.75\\\\\Rightarrow\ x= 1.079$

Foe 50 students, total amount of food = 1.079 x 50 = $53.95

hence, the cafeteria should have food of amount $53.95 so that it is be 90 percent confident that it will not run out of food.

7 0

2 years ago

5. Write a function of the form f(x) = - + k with a vertical asymptote at x = -15 and a horizontal asymptote of y = -6.

Amanda [17]

DONT TRUST LINK!! IT IS USED TO STEAL PERSONAL INFORMATION

8 0

2 years ago

Twenty-one fish are swimming in an aquarium. Eleven are removed, leaving 10 fish. Which number is the additive inverse of the nu

mixas84 [53]

−10

fish left = 10

Therefore, the additive inverse of the number of fish left is −10. The sum of a number and its additive inverse is 0.

10 + (−10) = 0 A is the answer

8 0

2 years ago

Need help with this math problem

KiRa [710]

She would need a gpa of 2.75

8 0

2 years ago