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

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 Algebra: Percentage and Pie Charts Solvers Lessons Answers archive Quiz In Depth

 Question 160734: A chemist needs 120 milliliters of a 60% solution but has only 44% and 92% solutions available how many milliliters of each should be mixed to get the desired solution? Click here to see answer by Fombitz(13828)

 Question 161312: simplify 2x [(4x2 + 6x - 2) + (4x2 - 8x)/2x] Click here to see answer by schrammbledeggs(41)

 Question 161575: A sum of \$2000 is split between two investments, one paying 7% interest and the other 8%. If the return on the 8% investment exceeds that of the 7% investment by \$40 per year, how much is invested at each rate. Click here to see answer by josmiceli(9686)

 Question 163035: soy bean meal is 12% protein cornmeal is 6% protein How many pounds of each should be mixed together in order to get 240 pound mixture that is 7% protein? How many pounds of the cornmeal should be in the mixture? How many pounds of soybean meal should be in the mixture? Click here to see answer by orca(409)

 Question 163111: How do you find the original price of an iten if the sale price is given and the percentage of the sale price is given? 12590 is the 12% of the orginal price. What is the orignal price? Click here to see answer by Fombitz(13828)

 Question 163172: If x is 225% of y, then y is what percent of x? Click here to see answer by checkley77(12569)

 Question 163333: sally puts \$200.00 in a bank account. Each year the account earns 8% simple interest. How much iterest will be earned in three years? Click here to see answer by elima(1433)

 Question 163605: The directins read: Use a proportion to answer the question. Question 1.: What percent of 125 is 25? I did this: 25/125 = x/125 = 125x/125 = 2500/125 x= 20 Click here to see answer by checkley77(12569)

 Question 164050: If \$52,200 is used for 36% of house hold's expenses, what is the annual household income? Click here to see answer by stanbon(57374)

 Question 164055: A 63 meter pipe is cut into two pieces. If one piece has a length of x meters, what is the length, in meters, of the other piece? Write an algebraic expression to answer the question Click here to see answer by Alan3354(30993)

 Question 164057: The product of Janelle's height and 8 is 112 . Use the variable j to represent Janelle's height. Click here to see answer by Alan3354(30993)

 Question 164610: how to do this sum by algebric or any other methods: 1. Increase 80pounds by 4% Click here to see answer by stanbon(57374)
 Question 164610: how to do this sum by algebric or any other methods: 1. Increase 80pounds by 4% Click here to see answer by MRperkins(300)

 Question 165399: I have a word problem I do not know how to write the equation for or solve. The problem reads: A salesperson has two job offers. Company A offers a weekly salary of \$630 plus commision of 14% of sales. Company B offers a weekly salary of \$1260 plus a commision of 7% of sales. What is the amount of sales above which Company A's offer is the betterof the two? Click here to see answer by Mathtut(3670)
 Question 165399: I have a word problem I do not know how to write the equation for or solve. The problem reads: A salesperson has two job offers. Company A offers a weekly salary of \$630 plus commision of 14% of sales. Company B offers a weekly salary of \$1260 plus a commision of 7% of sales. What is the amount of sales above which Company A's offer is the betterof the two? Click here to see answer by josmiceli(9686)

 Question 165404: I am not sure if I picked the right catagory but I am having a hard time with on algebra word problem. If the formula R = -0.037t + 50.1 can be used to predict the world record in the 400 - meter dash t years after 1925, for what years will the world records be 47.6 seconds or less? If you could help me with this I would SO appreciate it! Jen Click here to see answer by nerdybill(6962)
 Question 165404: I am not sure if I picked the right catagory but I am having a hard time with on algebra word problem. If the formula R = -0.037t + 50.1 can be used to predict the world record in the 400 - meter dash t years after 1925, for what years will the world records be 47.6 seconds or less? If you could help me with this I would SO appreciate it! Jen Click here to see answer by stanbon(57374)

 Question 165628: the pie chart i have to submit has total salary's. how do i calculate the percentage for each piece of the pie. \$3,306.88 \$3,516.11 \$2,021.83 \$3,229.92 \$2,021.83 Click here to see answer by josmiceli(9686)

 Question 166095: Bacteria X has a relative growth rate of 220 % (under ideal conditions). Some bacteria X are accidentally introduced into some egg salad. Three hours after contamination, there were 45,000 bacteria X in the egg salad. Find the initial number of bacteria X introduced into the egg salad: Click here to see answer by stanbon(57374)

 Question 166304: I need Your Help in drawing a pie chart ? please help and tell me how to make a pie chart. I Shall be very thankful to you because i am taking a exam of maths tomorrow. Click here to see answer by stanbon(57374)

 Question 166703: Tickets for a concert were sold to adults for \$3 and to students for \$2. If the total receipts were \$824 and twice as many adult tickets as student tickets were sold, then how many of each were sold? How is this sort of problem set up? and the necessary steps to solve? Thanks, Zach Cottrell Click here to see answer by scott8148(6628)

 Question 167109: How would I solve these problems? 16 2/3% of42 Click here to see answer by checkley77(12569)

 Question 167145: The percent of increase is 16%. If the new number is 522, find the original number. Click here to see answer by jojo14344(1512)

 Question 167408: A scratcher has four even numbers and four odd numbers covered. What are the odds that you would scratch off three even numbers on your first try? Click here to see answer by stanbon(57374)

 Question 168105: My question is about percentages: test 1 = 25% have 76% test 2 = 25% have 77% test 3 = 30% I need a 75% avg from my tests in order for me to add on the other 20%. I can figure out my avg from test 1 and 2 but what is the formula to predict the lowest grade I can get from 3rd test considering it is worth 30% and not 25%? quizzes = 5% have 100% essay = 5% = have 100% project = 10% ?? not finished Can't figure out how much I need to get a 90% in class. Thanks, jessiejames Click here to see answer by nerdybill(6962)

 Question 168382: the patel manufacturing company allows for a defect rate of 0.9% on it's production line. The defect average for last week was 3 items out of 1,500. What is the difference between the allowed defect rate and the defect average for last week? Click here to see answer by checkley77(12569)

 Question 168490: Please help me solve this SAT practice question: There are 75 more women than men enrolled in Linden College. If there are n men enrolled, then, interms of n, what percent of those enrolled are men? I started by saying Let n= # of men, which means that # of women= n+75 Then I wrote 100(n+75)= the percentage of women So in order to find the percentage of men in terms of n I wrote 100- 100(n+75) I just can't seem to get the solution that is a part of the choices given, which were: A.) [n/(n+75)]% B.) [n/(2n+75)]% C.) [n/((100(2n+75))]% D.) [100n/(n+75)]% E.) [100n/(2n+75)]% Click here to see answer by stanbon(57374)

 Question 168556: The vote count for candidate A was 7,310. The vote count for candidate B was 14,190. What percent of the voters voted for candidate A? Click here to see answer by MRperkins(300)
 Question 168556: The vote count for candidate A was 7,310. The vote count for candidate B was 14,190. What percent of the voters voted for candidate A? Click here to see answer by gonzo(654)

 Question 169471: what is x to 4x in percent of change.? Click here to see answer by Alan3354(30993)

 Question 169962: Write each percent as a decimal number. 11.6% Click here to see answer by solver91311(16897)

 Question 170013: if A is 50% larger than C ,and B is 25% larger than C ,then A is what percent larger than B ? Click here to see answer by checkley77(12569)

 Question 170174: In 1992 the cost of stamps went up \$.15 to \$.18. What is the percent increase? Click here to see answer by stanbon(57374)

 Question 170488: The number of bacteria N in a culture is given by the model N=250e^kt Where t is the time (in hours). If N=280 when T=10, estimate the time required for the population to double in size. Verify your estimate graphically. Click here to see answer by scott8148(6628)