One year i had 30 ap environmental science students and the next year i had 50 environmental students, what percentage did the population of apes students grow by?

If you want to find by how much percent something increased, take the final value and divide it by the initial value. When you divide 50 by 30, you get 5/3, which can be written as 1.666(repeating). Then, you subtract 1 from the answer and multiply by 100. So, the population of APES students grew by 66.66%

Hello!

To find this, we divide our 50 by 30.

50/30=1.6666666

We need to subtract one to find how much of the 30 increased.

.6666666

We can round this to a percent

66.67%

I hope this helps!

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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what is the model?

step-by-step explanation: