Answer:
27 years old
Step-by-step explanation:
Let Alvin's age be x and Elga's age is y:
y - x = 15
x + y = 27
2y = 42 (use elimination method)
y = 21
x = 6 (plug it back into either equation)
Therefore Alvin is 6 and Elga is 27
Answer:
50.75
Step-by-step explanation:
You Just have to multiply length - width - and height - and you're good to go!
The total was $1,560 so he paid $210 in finance charges.
Answer:
# 4 (-5,2) should be placed one more place to the right
#5 (5,1) should be moved once up
Step-by-step explanation:
:)
Answer: A not a triangle
Step-by-step explanation: