Which graphs are proportional?

Answer:

8

Step-by-step explanation:

First, solve the left side by adding/subtracting all the x's. 5x + 4x - 6x = (5+4-6)x = (9-6)x = 3x

Then if 3x=24, x must be 8.

Answer:

∴ Eli worked for 8 hours and Claire worked for 9 hours

Step-by-step explanation:

Let us form the two equations then graph them

∵ Eli worked for x hours

∵ Claire worked for y hours

∵ Eli and Claire worked a combined 17 hours

∴ x + y = 17 ⇒ (1)

∵ Eli can iron 15 shirts per hour

∵ Claire can iron 20 shirts per hour

∵ They ironed 300 shirts together in 17 hours

→ Multiply x by 15 and y by 20, then add the products and equate their

   sum by 300

∴ 15x + 20 y = 300 ⇒ (2)

Now let us find 2 points in each equation and draw the two lines which represent the two equations

→ In equation 1, put x = 0

∵ x = 0

∵ 0 + y = 17

∴ y = 17

∴ The first point is (0, 17)

→ Put y = 0 and find x

∵ y = 0

∴ x + 0 = 17

∴ x = 17

∴ The second point is (17, 0)

→ In equation 2, put x = 0

∵ x = 0

∵ 0 + 20y = 300

∴ 20y = 300

→ Divide both sides by 20

∴ y = 15

∴ The first point is (0, 15)

→ Put y = 0 and find x

∵ y = 0

∴ 15x + 0 = 300

→ Divide both sides by 15

∴ x = 20

∴ The second point is (20, 0)

Draw the first line using points (0, 17) and (17, 0)

Draw the second line using points (0, 15) and (20, 0)

The graph is attached down

From the graph

The red line represents equation (1)

The blue line represents equation (2)

The two lines intersected at point (8, 9) which is the solution of the system of equations

∴ The solution of the two equations is (8, 9)

∴ Eli worked for 8 hours and Claire worked for 9 hours

Answer:

D (x,y) ---> (x + 1, y - 6)

Step-by-step explanation:

The triangle in blue moves 1 unit to the right, and 6 units down.

Answer:

x = 1/5 or x=0.2

Step-by-step explanation:

isolate the variable by dividing each side by factors that dont contain the variable.

Answer:

13.23 is 31.50 percent of 42 and the price they dropped down was $10.5

Step-by-step explanation:

hope this helps pls mark me as brainliest! :)

Answer:

10.5

Step-by-step explanation:

CUZ I NO

Answer:

Well you could try measuring it out with a ruler or count the dots that would be there or even try a graph this might help u

Step-by-step explanation:

1: count the dots that are going diagnal

2: try using a ruler

3: then graph the points and see if this helps

Answer:

They are co interior angle . so mZ 1 is 72 itself

Answer:

B

Step-by-step explanation:

You had a balance of $535.07 from the previous month and only paid $450.00 so you didn’t pay off your balance in full.

Answer:

y = -11

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y = mx + b

m - slope

b - y-intercept → (0, b)

We have the slope m = 0 and the point (0, -11) → b = -11.

Substitute:

y = 0x - 11 = -11

It's a horizontal line.

Answer:

Step-by-step explanation:

Slope-intercept form: [tex]y=mx+b[/tex] when [tex]b[/tex] is the y-intercept and [tex]m[/tex] is the slope

The slope is already given in the question: 0

The y-intercept is the value of y when x is equal to 0. We can see that the given point, (0,-11) also tells us this. When x is equal to 0, y is equal to -11. Therefore, the y-intercept of the line is -11.

Finally, we plug the slope and the y-intercept back into the original equation.

[tex]y=mx+b\\y=0x+(-11)\\y=0-11\\y=-11[/tex]

I hope this helps!

Answer:

110

Step-by-step explanation:

If you want to eliminate x than multiply equation 1 by 4 and equation 2 by 3 and subtract them or,

If you want to eliminate y than mutiply equation 1 by 8 and equation 2 by 11 and subtract them.

Answer:a,cd,and h

Step-by-step explanation:

Answer:

5.18%

Step-by-step explanation:

5.76 x 100 = 576

576 ÷ 100 = 5.184

5.184 = 5.18%

Answer:

h=0.25t+3

Step-by-step explanation:

y=mx+b

y=0.25x+3

replace y with h and x with t

h=0.25t+3

Answer:

Range: (2, 14)

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

According to the graph, our line's y-values span from 2 to 14. Since both 2 and 14 are open dot, they are exclusive from the range:

Interval Notation: (2, 14)

Inequality Notation: 2 < y < 14

Answer:

a

Step-by-step explanation:

Answer: C  72=9÷1/8

I hope this helps:

Answer:

1). Parallelogram.

2). I don't know what they are asking for number two.

3). 2/3

4). Center of Mass

Step-by-step explanation:

I asked for help

Answer:

D

-5x + y = 7

x+3y = 5

Step-by-step explanation:

when you graph the equations, they are parallel. as you know, solutions are the point where the lines meet. if they are parallel, it's not possible for the lines to intersect.

Answer and Step-by-step explanation:

Lets solve each one and see which has solutions and which one doesn't have a solution.

__________________________________________________________

A) x + y = -6

   x + y = 12

Solve for y for one of the equations, then plug it into the other equation.

y = -6 - x                  

x + (-6 - x) = 12     =    -6 = 12  No Solution

__________________________________________________________

B) y = 2x + 5

   y = -3x + 1

2x + 5 = -3x + 1

4 = - 5x

[tex]-\frac{4}{5} =x[/tex] Solution

_________________________________________________________ C) y = 4x - 8

    y = 2x - 4

4x - 8 = 2x - 4

2x = 4

x = 2 Solution

__________________________________________________________

D) -5x + y = 7

     x + 3y = 5

x = 5 - 3y

-5(5 - 3y) + y = 7

-25 + 15y + y = 7

16y = 32

y = 2 Solution

__________________________________________________________

So, A is the correct answer. Sorry for the late answer!

#teamtrees #WAP (Water And Plant)

Answer:

26

Step-by-step explanation:

Fitst,  you substitute

f(2) = 3(2) + 20

f(2) = 6 + 20

f(2) = 26

your answer is 26

Answer:

c.)  26

Step-by-step explanation:

f(2) = 3(2) + 20

f(2) = 6 + 20

f(2) = 26

Answer:

1. b=39.497

2. c=3.606

3. a=18.974

Step-by-step explanation:

1.

41^2-11^2=b^2

1681-121=b^2

b^=1560

b=39.497

2.

2^2+3^2=c^2

4+9=c^2

c^2=13

c=3.606

3.

21^2-9^9=a^2

441-81=a^2

a^2=360

a=18.974

Answer:

hello

Step-by-step explanation:

[tex] - 5x - 6x = 14 - 17 \\ - 11x = - 3 \\ x = - \frac{3}{11} [/tex]

i think so

Hope it helps

Have a nice day

Answer:

g(x)=(x^2-2)-2

Step-by-step explanation:

Answer:

10/15-9/15=1/15

Step-by-step explanation:

2/3=10/15

3/5=9/15

10/15-9/15=1/15

With our simple interest calculator you can easly compute a monthly payment of an interest-only. ... Interest rate definition; Simple and compound interest; Simple interest ... mortgage calculator, every month you repay a part of the principal and your ... Nothing changes with time, so we didn't include a field that would specify ...

Step-by-step explanation:

pls give ma an BRAINLIEST PLSSSSS

Answer:

[tex]x=(+-)\sqrt{97}[/tex]

Step-by-step explanation:

the parenthesis with the plus and minus is when the plus is on top and the minus is underneath.

Answer:

8x-4 they have altogether

Step-by-step explanation:

6x-7+2x+3=8x-4

Answer:

The answer to the given question can be defined as follows:

Step-by-step explanation:

[tex]\to GCF(42, 70) = 7[/tex]

Therefore, the common roots of unity were  

[tex]\to e^{\pm i 2\pi \frac{k}{7}}\\\\\ where \\ \\ k=0,1,...... 6[/tex]

That's why the  answer is 14 for these