Answer:
Option A is correct
Step-by-step explanation:
Please Mark me brainlist
Answer:
15
Step-by-step explanation:
135 divided by 9 = 15
Answer:
Step-by-step explanation:
3x + 5 = 35
3x = 30
x = 10
Answer:
38
Step-by-step explanation:
take the biggest number and subtract it by the smallest number and you will get your answer.
A. 12*x + 2*y = 90
6*x + 2*y = 60
To write system of equation you just need to sum all solo and ensemble acts and make it equal to how much they will last for.
B. Here we can multiply second equation with negative 1 and add it to first equation.
6x = 30
x = 5
now we replace x in any of 2 equations to get y.
30+2y = 60
2y = 30
y=15
Solo acts are 5 minutes long and ensemble acts are 15 minutes long
