If y varies inversely as x and y = 24 when x = 8, find y when x is 4

Answers

Answer 1

Answer: okay so we start off with 24 = k divided by 8, you multiply both sided by 8 so 8 cancels out and 24 times 8 is 192 your equation is now y = 192 divided by 4 and the answer to that is y = 48

Answer 2

Answer: Im pretty sure it is 12 because if the inverse of 24 is 8 ( 8 x 3 = 24 ) than 4 times 3 equals 12, if that kind of makes sense

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Write an equation for the linr that is parallel to the given lin and passes through the given point. y=5x+10; (2,14)y=1/5x+4
y=-1/5x-4
y=5x=68
y=5x+4

Answers

y = 5x + 10...slope here is 5. A parallel line will have the same slope.

y = mx + b
slope(m) = 5
(2,14)...x = 2 and y = 14
now we sub and find b, the y int
14 = 5(2) + b
14 = 10 + b
14 - 10 = b
4 = b

so ur parallel equation is : y = 5x + 4

Answer:

He was correct

Step-by-step explanation:

Help me solve ;;;;; FCC Solving equations

Answers

(12 + x)/3 = 5

Multiply each side by 3 :

12 + x = 15

Subtract 12 from each side:

x = 3
=================================

x/3 - 5 = 3

Multiply each side by 3 :

x - 15 = 9

Add 15 to each side:

x = 24

The system of equations shown below is graphed on a coordinate grid: 4y + x = 4 2y − x = 8 Which statement is true about the coordinates of the point that is the solution to the system of equations? It is (2, 5) and lies on both lines. It is (−4, 2) and lies on both lines. It is (2, 5) and does not lie on either line. It is (−4, 2) and does not lie on either line

Answers

(2,5) is not on first line: 4*(5)+2 = 22 not 4 - first statement is false

(-4,2) is on first line: 4*(-4)-2 = -18
(-4,2) is on second line: 2*(-4)-(2) = -10 - second statement is false

(2,5) is not on second line: 2*(-5)-2 = -12 not 8 - third statement is true

(-4,2) is on bought lines - 4rd statement is false

Answer:

It is (−4, 2) and lies on both lines.

Step-by-step explanation:

The system of equations shown below is graphed on a coordinate grid:

4y + x = 4

2y − x = 8

(a) (2, 5), Plug in x= 2 and y=5 in the given equations

4(5) + 2 = 4 --------> false

2(5) - 2=8 --------->True

(b) (-4,2)

4(2) -4 = 4 --------> True

2(2) − (-4) = 8 ------> True

for (-4,2) both equations are true , so it lies on both lines

It is (−4, 2) and lies on both lines.

I dont understand how to do these three questions

Answers

9.
Well the first has the angles being 3x+12,x,and 90 so they have to add up to 180 degrees because it is a triangle.
3x+12+x+90 = 4x+102 = 180 solve
4x+102=180
4x=78
x=19.5

I really need help with this question3. Solve n^2+ n-12 by factoring. *
n= 6, n=-2
n=4, n= -3
n=-6, n= 2
n=-4, n=3