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tiny-mole [99]
3 years ago
13

Solve the system of linear equations by elimination

Mathematics
2 answers:
babunello [35]3 years ago
6 0

Answer:

x=5

y=-1

Step-by-step explanation:

JulijaS [17]3 years ago
5 0
  x3[x+4y=1]
-
3x+5y=10

-1y=-9

x-1 [-1y=-9]

y=9
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Step-by-step explanation:

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4 0
3 years ago
In a class of students, the following data table summarizes the gender of the students
sergij07 [2.7K]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
juan and debbie each earn 9 per hour at their "jobs." Debbie worked five hours more than juan during the week. if juan and debbi
Vaselesa [24]

Using a system of equations, it is found that Debbie worked 45 hours during the week.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Amount of hours worked by Juan.
  • Variable y: Amount of hours worked by Debbie.

Juan and Debbie each earn 9 per hour at their "jobs", and earned a total of 765 for the week, hence:

9x + 9y = 765

Simplifying the expression by 9:

x + y = 85 -> x = 85 - y.

Debbie worked five hours more than juan during the week, hence:

y = x + 5.

Since x = 85 - y, we replace in the expression:

y = 85 - y + 5.

2y = 90.

y = 45.

Debbie worked 45 hours during the week.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

3 0
2 years ago
Whats 20% of 40?<br> (find the percentage of the whole)<br> im also giving brainliest!!!
Nataliya [291]
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3 years ago
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Answer:

Answer: -7

Step-by-step explanation:

5 0
2 years ago
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