Ron is seeking a loan with a simple interest rate of 7% per year. If he wants to borrow $4,500, then how much will he be charged
1 answer:
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Answer:
x=3 meters
Step-by-step explanation:
step 1
Find the area of the rectangular pool
we have
substitute
step 2
Find the area of rectangular pool including the area of the walkway
Let
x ----> the width of the walkway
we have
substitute
step 3
Find the area of the walkway
To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway
so
step 4
Find the value of x if the area of the walkway equal the area of the pool
so
Solve for x
Solve the quadratic equation by graphing
The solution is x=3 meters
see the attached figure
There are additional details to the problem that you have left out. I have found them in other resources. The tray has to be 3 centimeters high and the length is five centimeters longer than its width. The volume of the tray is 252 cubic centimeters.
With these given, we can find the equation with the width alone as the variable:
To know if it's possible for the width to be 7.5 centimeters, we just plug this as the value of x and see if it satisfies the equation:
As we can see, the equation was not satisfied therefore it is NOT possible for the width to be 7.5 centimeters.
With these given, we can find the equation with the width alone as the variable:
To know if it's possible for the width to be 7.5 centimeters, we just plug this as the value of x and see if it satisfies the equation:
As we can see, the equation was not satisfied therefore it is NOT possible for the width to be 7.5 centimeters.