Answer: w=12h
Step-by-step explanation:
Given, the amount can earned by Jamie for babysitting in each hour =$12
Let <em>w</em> be the total wages earned by her in <em>h</em> hours by working as a babysitter.
Total wages earned = (Pay per hour) x (Numbers of hours)
Now , the total wages(<em>w</em>) earned by her in <em>h</em> hours would be :-
Hence, the linear equation that gives the wages, w, in dollars earned in h hours would be :
The investment growth is an illustration of an exponential function.
It will take 78.3 years for the investment to reach £29437.2
The given parameters are:
An exponential function is represented as:
Where:
So, we have:
When the investment becomes 29437.2, the equation becomes
Divide both sides by 645.3
Take the logarithm of both sides
This gives
Make t the subject
Hence, it will take 78.3 years for the investment to reach £29437.2
Read more about exponential functions at: