Answer:
im sorry cant help
Step-by-step explanation:
Answer:
B. 2 laps per minute
Step-by-step explanation:
<em>Speed = distance/time</em>
- Distance = 30 laps
- Time = 15 minutes
<u>Speed is:</u>
- 30 laps / 15 min = 2 laps / min
<u>Correct answer option:</u>
Answer:
60 CDs
Step-by-step explanation:
Given that :
Price of program = $0.5
Price of music = $5
Cost of production :
Program = $0.15 per program
CD = $1.75 per CD
Revenue made= $400
Profit made = $265
Number of CD produced =?
Let Number of CD's = x and program = y
$(0.5y + 5x) = 400
Y = (400 - 5x) / 0.5
y = 800 - 10x
Production :
$(1.75x + 0.15y)
Total cost of production - Revenue made = profit
(1.75x + 0.15y) - (5x + 0.5y) = 265
1.75x + 0.15y - 5x - 0.5y = 265
1.75x - 5x 0.15y - 0.15y = 265
3.25x + 0.35y = 265 - - - (2)
Put y = 800 - 10x in (2)
3.25x + 0.35y = 265
3.25x + 0.35(800 - 10x) = 265
3.25x + 280 - 3.5x = 265
-0.25x = - 15
x = 15/ 0.25
x = 60
2cm per 35 minutes
1cm per 17.5 minutes
17.5 minutes per centimeter