All categories

2 years ago

Solve by using substitution. =3−8 =−4

Mathematics

1 answer:

garik1379 [7]2 years ago

3 0

Answer:

I'm going to assume that you meant y=3x-8 and y=-4

This means that you would substitute -4 into the spot of y which gives you -4=3x-8. Once solved you would receive x=4/3.

Hope I helped have a nice day :)

You might be interested in

HELP! Please! A car is traveling at a rate of 15 meters per second. What is the car's rate in kilometers per hour? How many kilo

gizmo_the_mogwai [7]

Answer:

0.06km

Step-by-step explanation:

15÷1000=0.0015

0.0015×4=0.06

7 0

2 years ago

What is 16 1/10 - 10 7/10

Semmy [17]

16 1/10- 10 7/10= 5 4/10

4 0

2 years ago

Read 2 more answers

03.03 mc) find the ordered pairs for the x- and y-intercepts of the equation 5x − 6y = 30 and select the appropriate option belo

Archy [21]

5x - 6y = 30

to find x intercept, sub in 0 for y
5x - 6(0) = 30
5x = 30
x = 30/5
x = 6......so the x intercept is (6,0)

to find the y intercept, sub in 0 for x
5(0) - 6y = 30
-6y = 30
y = 30/-6
y = -5...so the y intercept is (0,-5)

6 0

2 years ago

Asap pls helpppp i stink at math :((((

ella [17]

Answer:

D. x= 28, 2=23; Use corresponding and supplementary angles.

Step-by-step explanation:

The degrees of (5y-4)° and 3y° both (added together) sum up to 180 degrees.

So the equation would be: (5y-4)+3y= 180.

Step 1- Add common variables.

(5y+3y)-4= 180

8y-4= 180

Step 2- Add 4 to both sides.

8y-4= 180

+4 +4

8y= 184

Step 3- Divide both sides by 8.

8y= 184

8 8

y= 23

Now that we know what the variable y equals to, we can now solve for x. The equation would be: 3y=(2x+13).

Step 1- Substitute the known variable.

3(23)=2x+13

69= 2x+13

Step 2- Subtract 13 to both sides.

69= 2x+13

-13 -13

56= 2x

Step 3- Divide both sides by 2.

56= 2x

2 2

x= 28

Hope this helps! :)

6 0

2 years ago

PLEASE ANSWER ASAP

ivolga24 [154]

The rate of change, or slope, is the change in y over change in x. To find the slope, pick two points. The slope will be the change in y-coordinates over the change in x-coordinates.
As an equation, this is
$slope = \frac{(y2-y1)}{(x2-x1)}$

To find the slope for function 1, pick any two points (x,y) in the table.
Let's choose (-1, 3) and (-2, 5).
The slope is
$\frac{5-3}{-2+1} = \frac{2}{-1} = -2$ .

Let's choose (-1, 0) and (0, 4) for the two points for function 2.
The slope is
$\frac{4-0}{0+1} = \frac{4}{1} = 4$ .

You want to compare the magnitude (without negatives) of the slope when comparing the greater rate of change/slope. In other words, you take the absolute value of each slope.
The magnitude of function 1's slope is 2.
The magnitude of function 2's slope is 4.

6 0

3 years ago

Read 2 more answers