The answer is 9. there are 9 different combinations to choose from.
Answer:
475 mph
Step-by-step explanation:
Distance = rate × time
time = distance / rate
If x is the speed of the plane in still air:
2100 / (x + 25) = 1890 / (x − 25)
Cross multiply:
2100 (x − 25) = 1890 (x + 25)
Distribute and solve:
2100x − 52500 = 1890x + 47250
210x = 99750
x = 475
Answer:
About 21.457 years
Step-by-step explanation:
You can solve this by setting up a simple equation.
log base 1.04 2.32=x
years
Hope this helps!
Answer:
0.3 feet
Step-by-step explanation:
2.75(0.8)^x
in which x is the number of bounces after the firts bouce
bouce 12 would mean x=11
2.75(0.8)^11 = 0.2
Answer
it would be $20 a year so it would be a 4% interest rate
Step-by-step explanation:
