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3 years ago

Given the following system of equations, identify the type of system.

1 answer:

5 0

2x + 2y = 8

2x + 2(-x + 4) = 8
2x - 2x + 8 = 8
2x - 2x = 8 - 8
0 = 0.......this means that the lines are dependent and consistent...they are the same line...therefore, they are equivalent

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Can someone pls help need it ASAP and can you pls explain in full detail how to do it

GenaCL600 [577]

Answer:

x= 1 , y=4

Step-by-step explanation:

x-y= -3 => Equation 1

x+5y= 21 => Equation 2

Substitution Method:

Substitute Equation 1=>

x=y-3 <= Equation 3

Put x=y-3 in Equation 2:

x+5y=21

( y-3)+5y=21

y-3+5y=21

6y-3=21

6y=21+3

6y=24

y=24÷6

y=4

Put y=4 in Equation 1:

x-y= -3

x-4=-3

x=4-3

x=1

Hope this helps :)

8 0

2 years ago

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Describe the ored of operations in this expression find the number it equals.

svlad2 [7]

Answer:

√71

Step-by-step explanation:

Simplify 42÷6 to 7

√64+7

Simplify 64+7 to 71

=√71

8 0

3 years ago

Solve y=x^2-5 for x

Natasha_Volkova [10]

Answer:

x^2 - 5 = y

x^2= y + 5

$x \: = \: \sqrt{y + 5}$

7 0

2 years ago

Can somebody plz answer this math problem correctly thanks! WILL MARK BRAINLIEST :D

Soloha48 [4]

Answer:

Ellen and Blake answered 20 questions correctly since Ellen had 0.8 correct and that is 80% same with Blake

Stephen scored a .84 or an 84%

I hope this helps :)

Step-by-step explanation:

plz mark B R A I N L I E S T

3 0

2 years ago

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select the expression that represents the following problem: a glass hold 1/4 sliter of liquid. how many glasses of liquid are i

Alex777 [14]

Answer:

20 glasses

Step-by-step explanation:

A glass holds 1/4 liter of water so if you have 4 cups you will have 1 liter of water. If you need 5 liters than you just multiply the number of cups per liter by the number of liters

4 x 5 = 20

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3 years ago