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Tutors Answer Your Questions about Linear Equations And Systems Word Problems (FREE)
Question 159180: Write and solve a system of3. An embossing shop etches metal with acid solutions. The owner is discussing a certain job with the job supervisor, and they decide to use 30 ounces of a 40% solution. Upon checking the acid solution supplies, the supervisor has found some 25% acid solution and some 50% acid solution, but there is no 40% acid solution. The owner explains to the supervisor how the two existing solutions can be mixed to obtain a 40% acid solution. How much of each solution is needed? equations for a given model / word problem:
Click here to see answer by ankor@dixie-net.com(6691)   |
Question 159181: Write and solve a system of inequalities for a given model / word problem.
1. Manuel’s lunch cart sells burritos and chili. To stay in business, Manuel must sell at least 10 orders of chili and 30 burritos per day. Because of limited space, not more than 40 orders of chili or 70 burritos can be made. The total number of orders cannot exceed 90. If Manuel decides to sell 30 burritos, what is the greatest and fewest number of chili orders he can sell?
Click here to see answer by stanbon(26259)  |
Question 159178: Write and solve a system of equations for a given model / word problem:
1. A total of $10,000 was invested in two bond mutual funds, a junk bond fund and a government bond fund. The junk fund is risky and yields 11% interest. The safer government bond fund yields only 5%. The year’s total income from the two investments was $740. How much was invested in each fund?
Click here to see answer by stanbon(26259) |
Question 159193This question is from textbook Intermediate Algebra
: A Broadway theater was 500 seats, divided into orchestra, main, and balcony seating. Orchestra sells at $80, Main sells at $70, and Balcony sells at $40. If all seats are sold out, and the gross revenue to the theater is $30,900. If all the main and balcony are sold out, and only have the orchestra are sold, the gross revenue is $26,900. How many are there of each kind of seat?This question is from textbook Intermediate Algebra
Click here to see answer by stanbon(26259) |
Question 159179: Write and solve a system of equations for a given model / word problem:
2. The owner of a small nursery specializes in iris and day lily starter plants. He has been selling irises at a price of $3.00 per dozen and day lilies at a price of $8.00 per dozen. A landscaper wants to buy 15 dozen of a mixture of day lilies and irises, and she is willing to pay $5.00 per dozen for the mixture. How many of each type should the nursery owner include in the mix?
Click here to see answer by stanbon(26259) |
Question 158874: The United States is China's largest export market. Imports from China grew from about 82 billion dollars in 1999 to 152 billion dollars in 2003. Let x=0 correspond to 1990, and estimate the amount of imports in 2006.
Click here to see answer by checkley77(7035) |
Question 159363This question is from textbook college algebra
: O my thank you so much for your help with this word problem. Suppose that a car rental agency charges a fixed amount per day plus an amount per mile for renting a car. Heidi rented a car one day and paid $80 for 200 miles. On aanother a day she rented a car from the same agency and paid $117.50 for 350 miles. Determine the linear function tha tthe agency could use to determine its daily rental charges. Many thanks for your time with this one.This question is from textbook college algebra
Click here to see answer by stanbon(26259) |
Question 158620This question is from textbook pre calculous
: Farenheit and Celcius In the farenheit temp scale, water boils at 212 F and freezes at 32 F. In the celcius scale, water boils at 100 C and freezes at 0 C. Assume that the Farenheit temp F and Celcius temp C are linearly related.
A. Find the equation in slope intersept form relating F and C with C as an independant variable.
B. What is the meaning of slope in question a?
This question is from textbook pre calculous
Click here to see answer by Alan3354(6059)  |
Question 159456: I have solved similar linear equations previously, but this one stumps me. The answer is 4L per the book, but I cannot get to that answer. Here is the question:
How many liters of a 60% acid solution must be mixed with a 75% acid solution to get 20L of a 72% solution?
Click here to see answer by scott8148(3382)  |
Question 159683: Dr.D.Jones has a total of $3000 invested in two stocks. Stock A pays dividends at the rate of 6% and stock B at the rate of 8%. If her dividends from the two stocks total $220 per year, how much did she invest in each stock? ( include let statements and show work )
Click here to see answer by ankor@dixie-net.com(6691) |
Question 159787This question is from textbook Intermediate Algebra
: Please I have put this question up several times and no one has given me an answer.
A manufacturer produces two models of the same toy, Model A and Model B. Model A takes 4 hours to produce and costs $8 each. Model B takes 3 hours to produce and costs $7 each. If the manufacturer allots a total of 5800 hours and $12,600 for production each week, how many of each model will be produced?
Please show the steps. Thank youThis question is from textbook Intermediate Algebra
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Question 159979: About 4.9 million households had one brand of personal computers in 2001. The use of these computers grew at an average rate of .275 million households a year. In 2001, about 2.5 millions households used another type of computer. The use of these computers grew at an average rate of .7 million households a year. How long will it take for the two types of computers to be in the same number of households?
Click here to see answer by stanbon(26259) |
Question 160079: Mr. Calvillo wants to enclose a rectangular are for a garden space of a given square footage. The length of the plot will vary inversely as the width. If he decides on a width of 28 feet, the garden will be 30 feet long. How long will a 45 foor wide garden be?
Click here to see answer by jojo14344(1483) |
Question 160185: write a recursive formula for each of the following sequences. and find the 10th term. Use u1 for the first term given.
a. 100, 150, 225, 337.5, 506.25...
b. 73.4375, 29.375, 11.75, 4.7, 1.88...
c. 80.00, 82.40, 84.87, 87.42, 90.04....
d. 208.00, 191.36, 176.05, 161.97
Click here to see answer by Edwin McCravy(2920) |
Question 160809: since the beginning of the month, a local reservoir has been losing water in a linear fashion. On the 12th of the month the resrviour held 200 million gallons of water, and on the 21st of the month it held only 164 million gallons. Assuming this continues, express the number of gallons as a function of time,t, where t is the number of days elapsed since the beginning of the month. Determine when the tank will be empty.
Click here to see answer by vleith(1977) |
Question 160809: since the beginning of the month, a local reservoir has been losing water in a linear fashion. On the 12th of the month the resrviour held 200 million gallons of water, and on the 21st of the month it held only 164 million gallons. Assuming this continues, express the number of gallons as a function of time,t, where t is the number of days elapsed since the beginning of the month. Determine when the tank will be empty.
Click here to see answer by AksharTech(1)  |
Question 160954: A 60 kg skier is pulled by a rope up a frictionless slope that is inclined at an angle of 20 degree with the horizontal. The rope pulls parallel to the slope and has a tension of 230N. Calculate the skier's acceleration.
Click here to see answer by Fombitz(2113)  |
Question 161099: Hockey teams receive 2 points when they win and 1 point when they tie. One season, a team won a championship with 54 points. They won 12 more games than they tied. How many wins and how many ties did the team have?
HOw many wins did the team have?
How many ties did the team have?
Click here to see answer by checkley77(7035) |
Question 161203: The Everton College store paid $1792 for an order of 48 calculators. The store paid $8 for each scientific calculator. The others, all graphing calculators, cost the store $52 each. How many of each type of calculator was ordered?
The store ordered ____ scientific calculators
The store ordered ____ graphing calculators
Click here to see answer by judysvaz(1) |
Question 161398: Kay spends 250 min/wk exercising. her ratio of time spent on aerobics to time spent on weight training is 3 to 2. How many minutes per week does she spend on aerobics? How many minutes per week does she spend on weight training?
Click here to see answer by checkley77(7035) |
Question 161397: On a canoe trip, Rita paddled upstream (against the current)at an avrage speed of 2 mi/hr relative to the riverbank. On the return trip down stream (with the current), her average speed was 3 mi/hr. Find Rita's paddling speed in still water and the speed of the river's current.
Click here to see answer by checkley77(7035) |
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