Answer:
x=3 and y=1
Step-by-step explanation:
subtract equation 2 from 1
then (2x+3y) -(2x+y) =9-7
2x-2x+3y-y =2
2y=2 therefore y=1
substitute y value in 2x+y=7
2x+1=7
2x=7-1
2x=6
x=3
The answer is B. Carlos worked two hours and earned $20
You need to find 24% of $7000 because that's the total interest over the course of 3 years. The answer is $1680
Answer:
-18√2
Step-by-step explanation:
i hope it would help u