Mr. Ramirez purchased 20 concert tickets for a total of $225. The concert tickets costs $15 for adults and $10 for children unde
r the age of 12. Write the system of equations and solve algebraically.
1 answer:
Answer:
C = 15
Step-by-step explanation:
Let A = # of adults and C = # of children.
A + C = 20
15A + 10C = 225
There are several ways to solve this system; here is one of them.
From the first equation: C = 20 - A
Substitute into the second equation: 15A + 10(20 - A) = 225
Multiply, collect terms, and subtract 200 from each side: 5A = 25 => A = 5
Since C = 20 - A, C = 15
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It's false the terms " subtracted from " and " less than " means to deduct or use minu (-) operation .
Answer:
<h2>-20</h2>
Step-by-step explanation:
divide both by -11 ->
x = - 20
I hope this helps you
x/3+y/-1=1
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