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3 years ago

I need help with this problem..

Mathematics

1 answer:

pishuonlain [190]3 years ago

8 0

Answer:

3y - x = 3

Step-by-step explanation:

The slope intercept form of the equation is expression is y = mx+c

m is the slope

c is the y inercept

From the graph

c = 1

Using the coordinates (-3, 0) and (0, 1)

m = 1-0/0-(-3)

m = 1/3

Get the required equation

y = 1/3x + 1

Multiply through by 3

3y = x + 3

3y - x = 3

Hence the required equation is 3y - x = 3

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The sum of three fourths of the number a and 24 is negative 9. What is the value of a?

Sindrei [870]

Answer:

-44

Step-by-step explanation:

3/4 a+24=-9

3/4 a=-9-24

3/4a=-33

multiply by 4

3a=-132

a=-132/3=-44

8 0

4 years ago

A manufacturer of bicycles has determined that 550 bikes per month will be sold at a price of $250. At a price of $150, it is es

iogann1982 [59]

750 bikes would be sold for $350

Let x represent the number of bikes sold per month and y represent the price.

550 bikes are sold at a price of $250, this can be represented by (550, 250). Also, 750 bikes is sold at a price of $150, hence it is represented by (750, 150)

A linear function is represented by:

y = mx + b

m is the slope, b is the y intercept.

Therefore the function is:

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\y-250=\frac{150-250}{750-550} (x-550)\\\\y=\frac{1}{2}x-25$

The number of bikes sold for $350 is:

350 = (1/2)x - 25

x = 750

Therefore 750 bikes would be sold for $350

Find out more at: brainly.com/question/13911928

3 0

3 years ago

Colin had b books. Then he went to a book sale and bought 35 more books. Choose the expression that shows how many books Colin h

stich3 [128]

Answer:

b + 35 = x (or any other variable)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Find the slope of a line containing points 4,-6 and 6,-4

telo118 [61]

Slope of a line = Y2-Y1/X2-X1
--> (-4)-(-6)/6-4
= -4+6/ 6-4
= 2/2
The slope of the line = 1

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4 years ago

How do I use elimination for the equations-x+5y=20 and 12y= 2x+ 60?

Slav-nsk [51]

$\left\{\begin{array}{ccc}-x+5y=20\\12y=2x+60&\text{subtract 2x from both sides}\end{array}\right\\\left\{\begin{array}{ccc}-x+5y=20\\-2x+12y=60&\text{divide both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-x+5y=20\\x-6y=-30\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad-y=-10\to\boxed{y=10}\\\\\text{Put the value of y to the second equation:}\\\\x-6(10)=-30\\x-60=-30\qquad\text{add 60 to both sides}\\\boxed{x=30}\\\\Answer:\ \boxed{x=30\ and\ y=10\to(30,\ 10)}$

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4 years ago