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4 years ago

Which relationship between x and y in the equation shows a proportional relationship y=12x y=12/x y=2x+6 y=x/2+3

1 answer:

5 0

Y = 12x . . . is a proportional relationship

_____
y = 12/x is an inverse relationship

y = 2x+6
y = x/2 +3 are both linear relationships, but not proportional relationships.

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Can someone help me out with this question? (Example 1)

lora16 [44]

Answer:

The answer to your question is:

x = 10

∡BOC = 52°

Step-by-step explanation:

Data

∡AOB = ∡COD = 25°

∡BOC = (4x + 12)°

∡AOD = 102°

Process

∡AOD = ∡AOB + ∡BOC + ∡COD

102° = 25° + 4x + 12 + 25 Solve for x

102 - 25 - 12 - 25 = 4x

4x = 40

x = 40/4

x = 10

∡BOC = 4(10) + 12

= 40 + 12

= 52°

8 0

3 years ago

Which of the following points is a solution to the system of equations x - y = 1 and -x + 3y = - 7?

kiruha [24]

Answer:

(-2,-3)

Step-by-step explanation:

Put the equations over each other.

$\binom{x - y = 1}{ - x + 3y = - 7 }$

Subtract the x values.

$\binom{ - y = 1}{3y = - 7}$

Subtract on both sides.

$2y = - 6$

Divide on both sides.

$y = - 3$

Insert the y value into one of the equations.

$x - ( - 3) = 1$

Get rid of the parenthesis.

$x + 3 = 1$

Subtract on both sides.

$x = - 2$

You could also individually plug in each solution into both equations to see if they are true.

7 0

2 years ago

1 1/4 plus 1 1/2 equals?

Vaselesa [24]

Answer:

2 3/4

Step-by-step explanation:

1/2x2=2/4

1/4+3/4=3/4

whole numbers- 1+1=2

2 3/4

8 0

3 years ago

Read 2 more answers

You want to change your cell phone service. The new company charges $40 per month for cell phone use. There is a one-time start-

faltersainse [42]

25+40*t=c
T=time,c=cost over time

4 0

3 years ago

Read 2 more answers

I need help with 11.

ioda

Answer:

Step-by-step explanation:

last one

3 0

3 years ago