SOLUTION: Solve each of the following applications
1.Ms. Jones has been given a loan of $2500 for 1 year. If the interest charged is $275, what is the interest rate on the loan.
2. As
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Question 117542: Solve each of the following applications
1.Ms. Jones has been given a loan of $2500 for 1 year. If the interest charged is $275, what is the interest rate on the loan.
2. Asurvey of 400 people found that 66 were left-handed. What percent of those surveyed were left-handed? my answer was 264. am I correct and how do I set the problem up?
3. The electricity costs of a business decreased from $12,000 one year to $10,920 the next, what is the rate of decrease?
4. If the total bill at a restaurant, including a 15% tip, is $65.32, what was the cost of the meal alone? My answer is $55.52 but how do I set the problem up?
Thanks
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1.Ms. Jones has been given a loan of $2500 for 1 year. If the interest charged is $275, what is the interest rate on the loan.
I = Prt
275 = 2500*r*1
r = 275/2500 = 11%
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2. Asurvey of 400 people found that 66 were left-handed. What percent of those surveyed were left-handed? my answer was 264. am I correct and how do I set the problem up?
No:
66/400 = 16.5%
=====================
3. The electricity costs of a business decreased from $12,000 one year to $10,920 the next, what is the rate of decrease?
Quantity decrease: 12000-10920 = 1080
Percent decrease 1080/12000= 9%
========================
4. If the total bill at a restaurant, including a 15% tip, is $65.32, what was the cost of the meal alone? My answer is $55.52 but how do I set the problem up?
Let "x" be the cost of the meal alone.
EQUATION:
total bill = x + 0.15x
65.32 = 1.15x
x = $56.00
================
Cheers,
Stan H.
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