Answer:
multiple by -3
and that will be the answer
Answer:
In 1981, the Australian humpback whale population was 350
Po = Initial population = 350
rate of increase = 14% annually
P(t) = Po*(1.14)^t
P(t) = 350*(1.14)^t
Where
t = number of years that have passed since 1981
Year 2000
2000 - 1981 = 19 years
P(19) = 350*(1.14)^19
P(19) = 350*12.055
P(19) = 4219.49
P(19) ≈ 4219
Year 2018
2018 - 1981 = 37 years
P(37) = 350*(1.14)^37
P(37) = 350*127.4909
P(37) = 44621.84
P(37) ≈ 44622
There would be about 44622 humpback whales in the year 2018
Elijah will pass John after 5 hours, and they each will have traveled 310 miles. Then the correct option is C.
<h3>What is speed?</h3>
The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.
We know that the speed formula
Speed = Distance/Time
John and Elijah are both driving from New York City to Richmond.
John leaves at 7:20 and averages 60 mph (miles per hour) on the way.
Elijah leaves at 7:30 and averages 62 mph on the way.
The situation is modeled by this system, where x is the number of hours after Elijah leaves and y is the distance each will travel.
y = 60x + 10 ...1
y = 62x ...2
The time is taken by Elijah to cross John will be
62x = 60x + 10
2x = 10
x = 5 hours
The distance traveled in 5 hours will be
y = 62 (5)
y = 310 miles
Elijah will pass John after 5 hours, and they each will have traveled 310 miles.
Then the correct option is C.
More about the speed link is given below.
brainly.com/question/7359669
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Answer: $9.09
Explanation:
100% - 30% = 70
The Wise Orange loves to read <span>Diary of a Wimpy Kid. Which store is having that 30% discount?</span>
We conclude that Michael worked for a total of 11.46 hours in the weekend.
<h3>How much time did he work on the weekend?</h3>
We know that during the weekend, the times that he used for each task are:
- (6 + 3/7) hours to do his homework.
- 4.37 hours to clean his room.
- 2/3 hours to walk the dog
The total time is given by the sum between the above numbers, where the difficulty is the fact that the 3 numbers are in different notations (decimal, fraction, and mixed).
The sum is:
S = (6 + 3/7) h + 4.37 h + 2/3 h
The easier way to do this, is to write the 3 numbers in decimal form:
2/3 = 0.66
6 + 3/7 = 6 + 0.43 = 6.43
Then the total time is:
S = 6.43 h + 4.37h + 0.66h = 11.46 h
We conclude that Michael worked for a total of 11.46 hours in the weekend.
If you want to learn more about sums:
brainly.com/question/17695139
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