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Illusion [34]
3 years ago
12

Use the substitution method to solve the system of equations: 2x – 5y = –14 x – 2y = –5

Mathematics
2 answers:
Nutka1998 [239]3 years ago
8 0
Solve for 1 variable
solve for x in second

add 2y to both sides
x=2y-5
sub 2y-5 for x in first equation
2(2y-5)-5y=-14
4y-10-5y=-14
-10-y=-14
add 10 to both sides
-y=-4
times -1
y=4

sub
x=2y-5
x=2(4)-5
x=8-5
x=3

x=3
y=4
(3,4)
Nezavi [6.7K]3 years ago
3 0

After using the substitution method to solve the system of equations, I’ve acquired the values of x and y which is 3 and 4 respectively or (3, 4). I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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in an ordered pair,the x-coordinate represents the number of hexagons and the y-coordinate represents the total number of sides.
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3 years ago
Jared and Casey splurged on a special dinner for their anniversary. Their dinner cost $262.57, and the local sales tax is 4%. If
Maru [420]

Answer:

325.58

Step-by-step explanation:

so im not good at explaining but JUST their DINNER costed $262.57. so you also have to ADD TAX because everything has tax so to find the 4% sale tax you need to set up the equation 262.57 x .04 (which is 4%). you will get 10.50 if you round. now you need to ADD TIP which is 20%. so to find that you need to do 262.57 x .20 (which is 20%). you will get 52.51. so now take BOTH 52.51 and 10.50 and ADD them. when you get this you also add it to the 262.57 and it gets you to 325.58

3 0
2 years ago
[11 +{-18 divided by 9}]x2<br><br> HELP! Please and thanks
USPshnik [31]

Answer:

7 is the answer.

Step-by-step explanation:

In equations like this, you would solve the numbers in the parenthesis first, and then gradually do: Multiplication -> Division -> addition -> subtraction.

Therefore, -18 / 9 is -2.

-2 * 2 would be -4,

11 + (-4) would be 7.

Answer : 7.

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3 years ago
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