The solution to the system of equations using substitution is given by:
x = 4 and y = 2.
<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.
For this problem, the equations are given by:
From the second equation, we have that:
x = -2y.
Replacing in the first equation, we have that:
3(-2y) + 0.5y = 11
-5.5y = 11.
5.5y = -11
y = -11/5.5
y = -2.
Then the solution for x is:
x = -2y = -2(-2) = 4.
The solution to the system of equations using substitution is given by:
x = 4 and y = 2.
More can be learned about a system of equations at brainly.com/question/24342899
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Step-by-step explanation:
The number of people to paint the bridge is inversely proportional to the number of hours it takes.
(If there are more people, it will take less time etc.)
9 people can paint the bridge in 5 hours.
=> 2 people can paint the bridge in 5 * (9/2) = 22.5 hours.
Answer:
There are 20 ducklings.
Step-by-step explanation:
For every group of 6 ducks, 5 would be ducklings.
24 / 6 = 4
There are 4 groups of ducks.
5 * 4 = 20
