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bija089 [108]
3 years ago
15

How many solutions does the following system have x+y=3, 2x+2y-5

Mathematics
1 answer:
kap26 [50]3 years ago
7 0

Answer:

Step-by-step explanation:

x + y = 3

2x + 2y = 5

-2x - 2y = -6

2x + 2y = 5

0 not equal to -1

no solution

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Change 26 out of 40 to a percentage
GenaCL600 [577]

Answer:

65

Step-by-step explanation:

26 divided by 40 then multiply by a hundred

6 0
3 years ago
How much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 25% ​antifreeze?
777dan777 [17]

Answer:

3 gallons.

Step-by-step explanation:

If you add three gallons of water to 1 gallon of antifreeze, then there are 4 gallons total. That means that 1/4 of the solution is antifreeze, and 1/4 is equal to 25%.

6 0
3 years ago
Read 2 more answers
Heather was asked to graph 2x + 4y = 12 by using slope and y-intercept. Her graph is shown.
blagie [28]
The problem statement says "the graph is shown," but you haven't shared it.  Please do that if possible.  Thank you.

<span>Heather was asked to graph 2x + 4y = 12 by using slope and y-intercept.

We can quickly put this into slope-intercept form:  
                                                                                                 12 - 2x
Subtract 2x from both sides:  2x - 2x + 4y = 12 - 2x  =>   y = ------------ 
                                                                                                      4

In simplest form, this is y = 3 - (1/2)x, or (-1/2)x + 3.  The slope is -1/2 and the y-intercept is (0,3).</span>
6 0
4 years ago
Read 2 more answers
Answer pls question in the picture
MAXImum [283]
Hi !

I’m sorry I won’t be doing the solving for you because it should be easy but I will give you the logic in case you don’t know how to solve them...

Please look at the picture below

According to the theorem we know that DE is:

DE = 1/2 ( BC)

Solve for X then find the values.

Note: remember that if you want to make your life easy multiply both side by 2 to get rid of the 1/2.

5 0
3 years ago
I am not too sure if I got this right. Can someone double check for me? Will mark brainly.
Vadim26 [7]

Answer:

you are correct

Step-by-step explanation:

5 0
3 years ago
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