Answer:
Step-by-step explanation:
Answer:
It would take 6 hours for you to travel 72 miles.
Step-by-step explanation:
This question can be solved by a simple rule of three.
We have that:
Each hour, you ride 12 miles.
How many hours will take for you to travel 72 miles?
So:
1 hour - 12 miles
x hours - 72 miles
12x = 72
x = 72/12
x = 6
It would take 6 hours for you to travel 72 miles.
In the old aquarium, 3 tablespoons of salt were used for 20 gallons. That's a conversion ratio of

That is, for every gallon of water in the aquarium, there was 0.15 tbsp of salt. So a 50 gallon aquarium, Ill should add

to maintain the salinity.
Answer:
k=2/3
Step-by-step explanation:
Step 1:
Step 1 in solving the exponential equations is re-writing the base same as other side of the equation
so,

Step 2:
Second step is equating the exponents
The rule used is:

So in this case

So the solution is:
k=2/3 ..