SOLUTION: If I had an old TV that is 15" by 20" and bought a new TV that measures 18" by 32", how do I make a formula to find out the percent of increase in area of the new TV Screen? I thin

Question 236471: If I had an old TV that is 15" by 20" and bought a new TV that measures 18" by 32", how do I make a formula to find out the percent of increase in area of the new TV Screen? I think I can find area of each, but am lost when it comes to finding the percent of increase. Can you help please
Answer by JimboP1977(311) (Show Source): You can put this solution on YOUR website!
Original area = 15 * 20 = 300 inches^2
New area = 18 * 32 = 576 inches^2
To find the percentage increase we take the difference of the two which is 276.
Then we take the difference and divide by the original area:
276/300 = 0.92
Multiply by 100 to give a percentage = 92% increase.
To think about it another way we are saying that the area has increased by 92% of its original size.
So 92% of 300 is 276 which is the amount of the increase.
Does that make any sense at all?
Do you need further clarification?
RELATED QUESTIONS
Televisions are advertised by the length of their diagonals. If a 42 inch measures 18... (answered by TimothyLamb)

How can I set this up? I will do the math if I can figure out hos to set this up. 68.... (answered by stanbon)

A new television salesperson knows that she sells televisions to one out of every 20... (answered by ewatrrr)

The Bilt-Rite Electronics Company makes televisions, CD players, and DVD players. Each... (answered by ikleyn)

A plasma TV company determines that its total profit on the production and sale of x TVs... (answered by stanbon)

My question was already answered by Charles I think and he did an awesome job but he... (answered by CharlesG2)

I am a little stuck from this point A survey found that people keep their television... (answered by ewatrrr)

I have been working on this all week and I just cannot get it. I know this is short... (answered by user_dude2008)

Last question for today. The screen size of a television is determined by the length... (answered by ikleyn,MathTherapy,math_tutor2020)