PLS HELP WITH NUMBER 2 & 3
2 answers:
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<u>Answer:</u>
- The weight after 20 months is 210 kilos.
<u>Step-by-step explanation:</u>
- 1 month = 6 kilos
- => 8 months = 6 x 8 = 48 kilos
- => x + 48 = 138
- => x = 90
<u>This means that the starting point is 90 kilos.</u>
- => 1 month = 6 kilos
- => 20 months = 6 x 20 kilos
- => 20 months = 120 kilos
- => 90 + 120 = weight in 20 months
- => <u>210 kilos = weight in 20 months</u>
Hence,<u> the weight after 20 months is 210 kilos.</u>
Hoped this helped.
Answer:
initial value is 15
growth factor is 1.25
Step-by-step explanation:
we are given
The number of members f(x) in Joe's health club
increased by 25% every year over a period of x years
The function below shows the relationship between f(x) and x as
now, we can compare it with exponential function
where
a is the initial value
b is growth factor
we can compare and find 'a' and 'b'
So,
initial value is 15
growth factor is 1.25
we know that
x is time
so, it can never be negative
f(x) is number of chambers
so, f(x) can not be negative
now, we can draw graph
and we get as
