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mary12369
10.07.2019 •
Mathematics
Solve for x: 8x - 2 - 5x = 8? a. 3 1⁄3 b. 2 1⁄2 c. 1.3 d. 7 asvab q. thx! : d
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Ответ:
Subtract
8x-2-5x=8
-5x
3x-2=8
+2 +2
3x=8
X=10/3
Ответ:
Equation: 293(1.06)^4 Quail in 4 years: 369.9 which is about 370
Step-by-step explanation:
For exponential growth, the equation used is y=a(1+r)^t where a is the initial amount, r is the growth rate, and t is time. The equation can also be written as y=a(1+r)^x
Finding a
a value is the initial amount. In this case, we are starting with 293 quail so our a value is 293
Finding r
The population is increasing at an annual rate of 6%. This is the same as .06. To change percentage to decimal, move the decimal over to the left two spaces.
Finding t
t is also known as x. It is usually time. We are looking for the new number of quail in 4 years, so the value of t will be 4.
Putting it all together
If we plug in all of our values to y=a(1+r)^x we should get y=293(1+.06)^4. Finish combining to get a final equation of y=293(1.06)^4. Type this into your calculator, google calculator, or do it by hand and you should get 369.9057493, or 370 quail.