1. In one study, a population of 784 orangutans is expected to decrease at a rate of 25 orangutans per year. Then after t years the number of orngutans will be

$y=784-25t.$

2. In a second study, the population of a group of 817 orangutans is expected to decrease at a rate of 36 per year. Then after t years the number of orngutans will be

$y=817-36t.$

3. Equate right sides of the equations:

$784-25t=817-36t,\\ \\36t-25t=817-784,\\ \\11t=33,\\ \\t=3\ years.$

Answer: after 3 years

5 0

2 years ago

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You pick 7 digits (0-9) at random without replacement, and write them in the order picked. What is the probability that you have

Pie

Answer:

= .0000001

Step-by-step explanation:

The odds of getting 1 number of out the 10 possible number (0-9) equal 10 is 1/10

There are 7 numbers to pick

P(xxx-xxxx) = 1/10 * 1/10 *1/10 * 1/10 * 1/10 * 1/10 *1/10

= .0000001

7 0

2 years ago

s344n2d4d5 [400]

supplementary angles measure 180°

8 0

2 years ago