Questions on Algebra: Percentage and Pie Charts answered by real tutors!

Tutors Answer Your Questions about percentage (FREE)

Question 80659: Lane invested $14,000, part at 15% and part at 2%. If the total inerest at the end of the year is $1,060, how much did she invest at 15%?
Click here to see answer by ptaylor(2052)

Question 81586: A rancher is planning to put up 220 yards of fencing. In the morning she puts up 80 yards, and in the afternoon she puts up 40% of the remaining fence. What percentage of the fence did she put up that day?
A. 36%
B. 51%
C. 62%
D. 76%
Click here to see answer by vertciel(183)

Question 81974: 25 decreased by 10% is what number?
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Question 81977: 25 decreased by 10% is what number?
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Question 82138: I need to understand how to do percentage:
1.4% of 28
6 is what percent of 25
12 is 6% if (?).
4 1/4% of (?) = 8.5
also: 2(m+1) + 3 = (m-2)5
I just need to understand these concepts.
Thanks
Click here to see answer by tutorcecilia(2152)

Question 82165: Elaine was charged $93 interest for 1 month on a $600 credit card balance. What was the monthly interest rate?
Click here to see answer by checkley75(3666)

Question 82416: please help.
Express 3.85 as a percent ans also 0.004 as a percent.
thank you.
Click here to see answer by 303795(595)

Question 82596: what percentage of Europe's population was in the age 65+ group in 1950?
1950 Population (in thousands)
__________________________________________
age 0-14 143,175
age 15-64 359,162
age 65+74 44,981
age 75+ 14,553
total 547,318
Click here to see answer by checkley75(3666)

Question 83413: I am trying to figure out gain and losses. For example, if I bought a stock @ $103.59 and it dropped to $93.23, what percentage is that loss?
Click here to see answer by Earlsdon(6294)

Question 83871: what is the percentage of 34/50?
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Question 84588: A machine enlarges a picture 20%. If that enlarger is used 4 times, how many times as large as the original picture will the final picture be?
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Question 85228: A chemist has 300 milliliters (ML) of solution that is 18% acid. How many milliliters of acid are in the solution?
Click here to see answer by stanbon(57984)

Question 85622: YOU CAN DEPOSIT $ 1,000 INTO AN ACCOUNT PAYING 10 % ANNUAL INTEREST EITHER TODAY OR EXACTLY 10 YRS FROM TODY . HOW MUCH BETTER OFF WILL YOU BE AT THE END OF 40 YRS IF YOU DECIDE TO MAKE THE INITIAL DEPOSIT TODAY RATHER THAN 10 YRS HENCE ?
Click here to see answer by stanbon(57984)

Question 86262: There are 1680 students who attend Central High School. At a recent football game at the school, 40% of the male students and 25% of the female students were in attendance. The total number of students attending the ball game from Central High was 560. How many males and how many females attend this high school?
I first subtracted 100-40 to get 60% and 100-25 to get 75% to multiply by 1680 and used .40*560 and .25*560= I cannot solve the problem. I do not know what I am doing wrong. Please help!
Thanks
Click here to see answer by ptaylor(2052)

Question 86917: in 2007 there are 350 libraries in southern illinois. this is a 75% increase over 2000. how many were there in 2000?
Click here to see answer by Flake(45)

Question 86921: you invest some money at 8% and half as much at 5%, you earn $3150 in annual interest, how much did you invest at each rate?
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Question 86918: you have $50,000 to invest, you invest some at 5% and the rest at 4%. you earn $2100 in annual interest, how much did you invest at each rate?
Click here to see answer by Flake(45)

Question 86956: You have $50,000 to invest, you invest some at 5% and the rest at 4%. You earn $2100 in annual interest, how much did you invest at each rate?
Click here to see answer by ptaylor(2052)

Question 86954: You have $50,000 to invest, you invest some at 5% and the rest at 4%, you earn $2100 in annual interest, how much did you invest at each rate?
Click here to see answer by ptaylor(2052)

Question 86955: You invest some money at 8% and half as much at 5%, you earn $3150 in annual interest, how much did you invest at each rate?
Click here to see answer by ptaylor(2052)

Question 86953: In 2007 there are 350 libraries in southern Illinois, this is a 75% increase over 2000, how many were there in 2000? (I know the answer is 200 but I don't know how to show how i got that answer)
Click here to see answer by scott8148(6628)

Question 87035: a number divided by 3 plus 6 is the same as the number minus 2, find the number.
(i know the answer is 12 i don't know how to show the work)
Click here to see answer by scott8148(6628)

Question 87031: Can someone help me with this?
Carla invested $20,000, part at 6% and part at 15%. If the total interest at the end of the year is $1,290, how much did she invest at 6%?
Click here to see answer by scianci(186)

Question 88152:

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Question 88517: Find the discount sale price.
shirt:$19.96
Discount:25%
Click here to see answer by rob9926(2)

Question 88715:
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 88888: How many liters of an 11% alcohol solution should be mixed with 60 liters of a 5% alcohol solution to obtain a mixture that is 7% alcohol?
Click here to see answer by stanbon(57984)

Question 88941: I know the answer, but I want to know the process of getting there. I would like to know step-by-step of how to get this answer. Here is the problem:

Use the Pie Charts to answer the question. (Since I can't copy and paste the pie charts, I will just list their percentages.

Pie Chart 1:
Total Expenditures:
-Taxes: 17%
-Research & Development: 10%
-Salaries: 38%
-Advertising: 35%

Pie Chart 2:
Expenditures on Advertising:
-Television: 43%
-Newspapers: 36%
-Fliers: 3%
-Radio: 18%

The first pie chart represents a company's expenditures, and the second pie chart shows a breakdown of the company's advertising expenditures. What percent of the company's expenditures is spent on radio advertising?

a) 6.3%
b) 11.7%
c) 18.0%
d) 35.0%
Click here to see answer by stanbon(57984)

Question 90409: could you explain to me how to figure out what 16% of 225 equals

Click here to see answer by checkley75(3666)

Question 90909: I need help solving this problem:
According to the following numbers what percentage of workers walk to work?
Drive Alone 7,862,418
Carpool 1,120,982
Take Public Transit 144,959
Walk 138,496
Other means 149,641
Work at Home 346,626
Do I add all the totals together and divide by how many people walk?
Click here to see answer by stanbon(57984)

Question 90933: Hello,
I need help defining a variable, writing a compound sentence, and solving this problem:

Susan makes 10% commission on her sales. She also receives a salary of $25,000. How much must she sell to receive a total income between $32,000 and $41,900?

Thank you
Click here to see answer by stanbon(57984)

Question 91086: Percent of Change:
What number increased by 30% equals 260? I know that the answer is 200 but how can I show my work?
Click here to see answer by psbhowmick(529)

Question 91180: The question is:
This year, 75% of the graduating class of Harriot Tubman High School had taken at least 8 math courses. Of the remaining members, 60% had taken 6 or 7 math courses. What percent of the graduating class had taken fewer than 6 math courses?
---I know it's 60% of 25% but how do you get that? What does "of" stand for?
Click here to see answer by stanbon(57984)

Question 91331: what number increased by 30% equals 260?
Click here to see answer by checkley71(8403)

Question 91332: what number decreased by 33 1/3% is 30?
16 is 25% more than what number?
An item sells for $45 after a 20% discount. Find the original price.
What is 66 2/3% less than 45?
A price plus 6% tax is equal to $4.24. Find the original price.
Click here to see answer by stanbon(57984)

Question 91480: Business and finance. Al purchased a new refrigerator that cost $736.12 with
interest included. He paid $100 as a down payment and agreed to pay the remainder
in 18 monthly payments. What amount will he be paying per month?

Click here to see answer by checkley71(8403)

Question 91069: You buy a stock at $78.51 and it sells at $70.31. What is your percentage of loss?
Click here to see answer by mathispowerful(115)

Question 92008: A rancher is planning to put up 220 yards of fencing. In the morning she puts up 80 yards, and in the afternoon she puts up 40% of the remaining fence. What percent of the fence did she put up that day?

Click here to see answer by bucky(2189)

Question 92084: what percent of 65 is 40?
Click here to see answer by ptaylor(2052)

Question 92479: In a class of 28 students, one student is to be elected as class representative. Three of the 28 students are running for the position. The three candidates may not vote, but all the other students must vote. What is the smallest percent of votes with which a candidate could win?
Click here to see answer by Edwin McCravy(8999)

Question 92489: If Leah is 6 years older than her sister, Sue, and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue?
Click here to see answer by ankor@dixie-net.com(15747)

Question 92480: John and Ingrid pay 30% and 40% tax annually, respectively. If John makes $56,000 and Ingrid makes $72,000, what is their combined tax-rate?
Click here to see answer by ankor@dixie-net.com(15747)

Question 92630: If a + 2b is equal to 125 percent of 4b, what is the value of a/b?
Click here to see answer by ankor@dixie-net.com(15747)

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