Answer:
x= 8 and y= 8 square root of 2
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
The answer is C because r =3 I got that because it says triples. a=5 it comes from when it says five files are infected. an=3an-1. an=5(3)n-1. Hope this helps!
The xy-value in the solution to the given system of linear equation shows that x = 2 and y = -4.
<h3>What is a system of linear equations?</h3>
Whenever two or more linear equations operate simultaneously, we create a System of Linear Equations. These equations must contain one or more similar variables in order to operate together.
When solving a system of linear equations, our objective is to simplify two equations having two variables to a single equation having one variable. Because each equation in the system includes two variables, substituting an expression for a variable is one technique to minimize the number of variables in an equation.
From the given information:
4x + 5y = -12 --- (1)
-2x + 3y = -16 ----- (2)
From equation (1)
4x+5y+(−5y) = −12 + (−5y) (Add -5y to both sides)
4x = −5y − 12
Divide both sides by 4
Replacing the value of x in into equation (2); we have:
Simplifying both sides of the equation, we have:
Cross multiply
11y = -44
y = -4
Replace the value of y = -4 into
x = 2
Learn more about systems of linear equations here:
brainly.com/question/14323743
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Answer:
Table 20.
Step-by-step explanation:
Find the LCM of 4 and 5,
4, 8, 12, 16, 20
5, 10, 15, 20, 25
20 is the LCM of 4 and 5.
Hence giving 20 as the answer.
Answer: 125 student tickets and 350 adult tickets were sold.
Step-by-step explanation:
Let x represent the number of student tickets that were sold.
Let y represent the number of adult tickets that were sold.
A concert manager counted 475 ticket receipts the day after a concert. This means that
x + y = 475
The price for a student ticket was $13.50, and the price for an adult ticket was $15.00. The register confirms that $6,937.50 was taken in. This means that
13.5x + 15y = 6937.50 - - - - - - - - 1
Substituting x = 475 - y into equation 1, it becomes
13.5(475 - y) + 15y = 6937.50
6412.5 - 13.5y + 15y = 6937.50
- 13.5y + 15y = 6937.50 - 6412.5
1.5y = 525
y = 525//1.5 = 350
x = 475 - y = 475 - 350
x = 125