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Elza [17]
3 years ago
12

HELPPP PLEASEEEEEEEEE

Mathematics
2 answers:
strojnjashka [21]3 years ago
7 0
Given the equation, y - x = 3x + 7

Add x to both sides to isolate y:

y - x + x = 3x + x + 7

y = 4x + 7 (This is the linear equation in slope-intercept form, y = mx + b). The rate of change is also the slope of the line, m = 4.

Therefore, the rate of change is 4.

Please mark my answers as the Brainliest if you find my explanations helpful :)
liubo4ka [24]3 years ago
4 0
Y=4x+7

So 4 is the rate of change because if you solve for y, x is the rate of change
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3.1.3 Quiz: Two-Variable Systems: Graphing
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Answer:

Bro cheating .

Step-by-step explanation:

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7 0
2 years ago
What is the value of z in the equation 2(4z − 9 − 7) = 166 − 46?
kumpel [21]
Hi there!

2(4z - 9 - 7) = 166 - 46
let's make this a little more simpler...

2(4z - 16) = 120

use distributive property.
multiply 2 and 4z , 2 and -16.
8z - 32 = 120

add 32 on both sides to isolate the variable

8z = 152

divide both sides by 8...

z = 19

So your answer is A. 19

Hope this helped!! :)
8 0
3 years ago
Read 2 more answers
The next step in assembling the coffee table is to attach a support from point D to point C, which is halfway down leg A.
Phoenix [80]
I THINK IT WOULD BE 54 INCHES TALL I THINK 
7 0
3 years ago
Which inequality matches the graph?
Papessa [141]

Given:

The dotted boundary line passes through the points (-3,-8), (1,-2) and (9,10).

Above line is shaded.

To find:

The inequality for the given graph.

Solution:

Consider any two points on the line. Let the two points are (1,-2) and (9,10). So, the equation of the line is:

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

y-(-2)=\dfrac{10-(-2)}{9-1}(x-1)

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y+2=\dfrac{12}{8}(x-1)

y+2=\dfrac{3}{2}(x-1)

Multiply both sides by 2.

2(y+2)=3(x-1)

2y+4=3x-3

2y-3x=-3-4

-3x+2y=-7

Above line is shaded and the boundary line is a dotted line. So, the sign of inequality must be >.

-3x+2y>-7

This inequality is not in the equations. So, multiply both sides by -1 and change the inequality sign.

(-3x+2y)(-1)

3x-2y

Therefore, the correct option is D.

8 0
3 years ago
Jordan was looking for a cheap cell phone plan.
umka21 [38]

Answer: Plan B

Step-by-step explanation:

First you would find out how much they have to pay the monthly fee in 5 months. Plan A pays $50 in 5 months and Plan B pays $30 in 5 months

Then you find he amount of money that they need to pay for a hundred texts. Plan A spends $25 and Plan B spends $35 .

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