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weeeeeb [17]
3 years ago
13

HELP I Will mark brainliest if you explain

Mathematics
1 answer:
Aleksandr [31]3 years ago
8 0

Answer:

(0,5)

(2,1)

(4,-3)

Step-by-step explanation:

so all you have to do is plug in the x value and if the y value comes out to be whatever is matches up with then it is a solution to the equation for example if you plug in 0 to y=-2x+5 then you get 5 and below it says that when x=0 then y=5 which is true so that would be an answer now if you plug in 2 then you get 1 and it says that when x=2 y=9 which is not correct. sorry if this doesnt make sense its so hard to explain virtually

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Which of the following BEST describes how to use the addition property of equality to isolate the variable
attashe74 [19]

Answer:B

Step-by-step explanation:

From calculating the equations below, we find that all sections have m equal to negative three.

According to the second option, it is most likely because six is added.

3 0
3 years ago
-12+5x=15-4x<br><br><br> Please help me :( I need to know how to get the answer as well
tankabanditka [31]

Answer:

We simplify the equation to the form, which is simple to understand  

5x+15=4x-12

We move all terms containing x to the left and all other terms to the right.  

+5x-4x=-12-15

We simplify left and right side of the equation.  

+1x=-27

then divide both sides of the equation by 1 to get x.  

x=-27

5 0
3 years ago
Read 2 more answers
The points plotted below are on the graph of a polynomial. Which of the following x-values best approximate roots of the polynom
Kaylis [27]

Answer:

The correct options are:

x= -1.1

x= 2.4

x = 6

Step-by-step explanation:

The roots of any polynomial can easily be determined by the graph. To find the roots from the graph, we just have to see the values of x, for which the value of whole polynomial becomes 0.

We can see in the graph that there are three points where the value of polynomial becomes 0. that are

At x= -1.1

At x= 2.4

At x = 6

Thus, these are the roots

8 0
2 years ago
Simplify the expression using long division <br> (3x ^ 3 - 97x + 32) / (x ^ 2 - 32)
lisov135 [29]

Answer:

-x+32

Step-by-step explanation:

x^2 ÷ 3x^3-97x+32

3 0
3 years ago
Please help with algebra problem
kumpel [21]
Number of weekend minutes used: x
Number of weekday minutes used: y

This month Nick was billed for 643 minutes:
(1) x+y=643

The charge for these minutes was $35.44
Telephone company charges $0.04 per minute for weekend calls (x)
and $0.08 per minute for calls made on weekdays (y)
(2) 0.04x+0.08y=35.44

We have a system of 2 equations and 2 unkowns:
(1) x+y=643
(2) 0.04x+0.08y=35.44

Using the method of substitution
Isolating x from the first equation:
(1) x+y-y=643-y
(3) x=643-y

Replacing x by 643-y in the second equation
(2) 0.04x+0.08y=35.44
0.04(643-y)+0.08y=35.44
25.72-0.04y+0.08y=35.44
0.04y+25.72=35.44

Solving for y:
0.04y+25.72-25.72=35.44-25.72
0.04y=9.72

Dividing both sides of the equation by 0.04:
0.04y/0.04=9.72/0.04
y=243

Replacing y by 243 in the equation (3)
(3) x=643-y
x=643-243
x=400

Answers:
The number of weekends minutes used was 400
The number of weekdays minutes used was 243
6 0
3 years ago
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