Answer:
20 minutes on the stationary bike
10 minutes on the treadmill
Step-by-step explanation:
x = minutes on bike
y = minutes on treadmill
x + y = 30
12x + 15y = 390
x = 30-y
12(30-y) + 15y = 390
360 - 12y + 15y = 390
3y = 30
y = 10
x + 10 = 30
x = 20
Answer:
1) proportional
2) not proportional
3) not proportional
4) have
Step-by-step explanation:
Toni’ Tiles rate of change is about: 6.083
Bob’s Bathrooms rate of change is 6.083
Rhonda’s Restroom Redos is about 8.36
Answer:
A: 30 m
B: 14 boxes
C: $596.40
D: $477.12
Step-by-step explanation:
A: 6*4.2 = 25.2. 3.2*1.5 = 4.8. 25.2 + 4.8 = 30.
B: 30/2.15 = 13.95, which rounds to 14.
C: 14*42.60 = $596.40
D: 20% off 100% = 80%, which is equal to 0.8. 596.40*.8 = $477.12.
Hope it helps you!! :)
Answer:
C
Step-by-step explanation:
I hope it's right
Sorry if it's wrong
It's simple.
First multiply 3 by 4
It equals 12
Then, multiply 12 by 3
It equals 36
The answer is 36 different combinations.
Hope this helps!
