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Sedaia [141]
3 years ago
12

Which of the following ordered pairs represents the solution to the system given below?

Mathematics
2 answers:
castortr0y [4]3 years ago
8 0
X − 4y = 7
5x + 9y = 6

5x − 20y = 35  //1st * 5
5x + 9y = 6

5x +9y - 5x + 20y = 6 - 35  //2nd - 1st
5x + 9y = 6

29y=-29
5x=6-9y

y=-1  //1st : 29
5x=6-9*(-1)

y=-1
x=15:5 //2nd : 5

y=-1
x=3

check:
for x=3 and y=-1 there is:
x − 4y = 7 is 3 − 4*(-1) = 7 is 7=7 ok
5x + 9y = 6 is 15-9=6 is 6=6 ok

answer: (3;-1) represents the solution.

Law Incorporation [45]3 years ago
3 0

Answer:

It’s 3,-1

Step-by-step explanation:

You have to plug in the points u can use a calculator or work it by hand but I did it on the calculator and that’s what I got

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<h3>Number of visits Liam can make</h3>

Let x represent the number of visits

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Learn more about Number of visits Liam can make here:brainly.com/question/18350673

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Len and Faye live 54 miles apart. At the same time, they start biking toward each other on the same road. Len's constant rate is
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Answer:

Step-by-step explanation:

Len and Faye live 54 miles apart. At the same time, they start biking toward each other on the same road. Len's constant rate is 7 mph and Faye's is 11 mph. How many hours will it take them to meet? [Remember: D = (r)(t)]

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 D = (r)(t), Where

‘D’ is the distance covered

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5 0
4 years ago
Read 2 more answers
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