Answer:
Step-by-step explanation:
In order to solve for b, we must isolate the variable. We can start by subtracting 5 from both sides.
Simplify.
Add b to both sides.
Simplify.
Multiply everything by 3 to remove the fractions.
Simplify.
2b + 3b = 45
Simplify.
5b = 45
Divide 5 from both sides.
5b ÷ 5 = 45 ÷ 5
Simplify.
b = 9
For more information on solving variables, check out the following answers!
Answer:
40 seconds
Step-by-step explanation:
The ratio would be 3:120, indicating the amount of times it went up for air in 120 seconds. In order to find the answer, we'll find the unit rate. 120 divided by 3 is evenly 40. That means, the unit rate is 1:40. It also means that 40 seconds went by before the manatee surfaced the first time (if it held its breath for the same rate).
The population before the increase was 894.
Answer:
210
Step-by-step explanation:
6×7×10÷2=210
hope this is correct
