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
Everyone would get 2 1/4 cupcakes because if you split up each cupcake by 4, (In four different pieces) everyone would get 9/4 slices. Change to a mixed number to get 2 1/4
Answer:
-7/4
Step-by-step explanation:
Answer:
12=(10, 54)+(42, 48)-12feet
Step-by-step explanation:
math teacher
Volume is L x W x H
8 x 10 x 3 = 240 cubic units
