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Colt1911 [192]
3 years ago
13

Is any type of form of solving systems more useful at certain times?

Mathematics
1 answer:
Andrews [41]3 years ago
8 0
Yes because if you have one equation for example is y=3x and the other is 3y=9 then substitution would be more useful. If you have x+2y=3 and -x+y=5 then elimination would be more useful. 
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You bought a magazine for $5 and four erasers. You spent a total of $25. What equation
N76 [4]

Answer:

$25 - $5 = $20

$20 divided by 4 = 5

1 earser = 5

5 0
3 years ago
What is 1+1 please help irgent
Ugo [173]
Either it is 2, or it is window. Take your pick, chum. Also, I do believe you need to learn how to spell "urgent". 
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4 0
3 years ago
Read 2 more answers
2. Aaron baked two identical cakes. He cut one into 9 equal slices and the other into 19 equal slices.
Svetlanka [38]

2/3 x 9 = 6 slices

1/3 x 18 = 6 slices

Hence they give the same number of slices.

5 0
3 years ago
How do u find the area o a pyramid
tankabanditka [31]

Answer:

The surface area of any pyramid can be found by adding the surface area of the base to the surface area of the lateral faces. When working with regular pyramids, you can find the surface area using a formula, as long as you know how to find the area of the base of the pyramid.

6 0
3 years ago
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Find an equation for the line that passes through the points (4,3) and (-6,5)
mixer [17]

Answer:

y = -1/5x + 19/5  or

x + 5y = 19.

Step-by-step explanation:

The slope of the line (m) = (5-3) / (-6-4)

= -1/5.

Using the point-slope form of the equation of a line:

y - y1 = m(x - x1)     m = -1/5. x1 = 4 and y1 = 3 , so:

y - 3 = -1/5(x - 4)

y - 3 = -1/5x + 4/5

y = -1/5x + 19/5   which is the equation in slope-intercept form.

Converting  to standard form  ( multiplying by 5):

5y = -x + 19

x + 5y = 19.

7 0
3 years ago
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