Tutors Answer Your Questions about Linear Algebra (FREE)
Question 473718: An investment of $59,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, the third 9%. Total interest from the investment was $4710. The interest from the first investment was 6 times the interest from the second.
What are the amounts from the three parts of the investments?
Click here to see answer by Theo(3504)   |
Question 473905: 1.) 680 centimeters=_______________feet (give answer in decimal form to nearest 1/100).
2.)13 liters is approximately_____________________gallons (give answer in decimal form to nearest tenth).
3.) 273g=__________________mg
4.) Find the area of a circle with a radius of 39 cm (use 3.14tt)
5.) Find the volume of a sphere with a 15 in. radius
Click here to see answer by Alan3354(31509)  |
Question 475324: *Translate the ff. into Math equation
1. The product of the sum and the difference x and y.
2. The distance covered after 5 hours if the rate is R units per unit hour of time.
3. The area of a square garden of a side that is five more than X.
* Translate the ff. into English Phrase.
1. x-7
2. 2m+5m
3. 5 abc
4. 1/2 (b1+b2)
5. 3x-2y
6. 2(x 'squared'+ y 'squared')
~thanks.
Click here to see answer by ankor@dixie-net.com(15746)  |
Question 480481: Abraham Read the Book component of 480 pages in a certain period by reading the same number of pages per day. But he was able to finish reading the book before 5 days from the same period if the 16-page read more on a daily basis. How was completed by the specified period in which Abraham read the book??
Click here to see answer by mathstutor494(95)  |
Question 481088: A puzzle requires you to find a corredt three color code. There are only three colors available:Red, Blue, and Yellow. Colors may be placed in any or all of the three positions. How many possible combinations are there?
Click here to see answer by jorel1380(2518)  |
Question 481099: Can some one please help me with the following Algebra II questions, these are so very important for my collage exam semester and also for me to be able to pass such exam.
1- Two cyclists start biking from a trail’s start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist catches the first from the time the second cyclist started biking?
2- Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?
3- John is travelling to a meeting that is 28 miles away. He needs to be there in 30 minutes. How fast does he need to go to make it to the meeting on time?
4- If Steven can mix 20 drinks in 5 minutes. Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much will it take all three of them working together to mix the 20 drinks?
5- If Sam can do a job in 4 days that Lisa can do in 6 days & Tom can do in 2days, how long would job take if Sam, Lisa, and Tom worked together to complete it?
6- If two plans leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph?
7- Solve the equation 8x³ + 4x² - 18x – 9 = 0 algebraically for all values of x.
8- What is one solution for the accompanying system of equations? y= x²-9 & y=x+3
9- Solve the equation x³ - 5x² -4x + 20 = 0 algebraically for all values of x.
10- Solve: x² - x – 12 > 0. State the answer in interval notation.
11- A car’s stopping distance varies directly with the speed it travels, and inversely with the friction value of the road service. If a car takes 60 feet to stop at 32 mph, on a road whose friction value is 4, what would be the stopping distance of a car travelling of a car travelling at 60 mph on a road with friction value of 2?
12- Find the zeros of the polynomial function: P(x) = (x² + 9) (x + 3).
13- The sum of twice a positive integer and four times the reciprocal of the integer is 9. Find the integer.
14- The sum of three times a positive integer and four times the integer is 10. Find the integer.
I am aware that I only have 5 questions a day, I will wait 3 to 4 days for your help. Thank you so very much for your help, God blesses you for your help to needy people like me.
Thank you,
Amr Alashmawi
08/12/2011
Click here to see answer by richard1234(5390)  |
Question 481275: 1- Two cyclists start biking from a trail’s start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist catches the first from the time the second cyclist started biking?
2- Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?
3- John is travelling to a meeting that is 28 miles away. He needs to be there in 30 minutes. How fast does he need to go to make it to the meeting on time?
Click here to see answer by ankor@dixie-net.com(15746) |
Question 483452: A rectangular table can be be set against one wall of a room, as shown, so that it is 5 feet from the two side walls and 8 feet from the fourth wall. If the perimeter of the room is 58 feet and the combined length of the three exposed sides of the table is 17.5 feet, then what are the dimensions of the table?
Click here to see answer by ankor@dixie-net.com(15746) |
Question 485104: I have a story problem I can't figure out. Can you help me and show me the steps to solve it? Thanks you. The speed of a moving walkway is about 4.5 feet per second. Walking on the moving walkway, it takes Karen a total of 20 seconds to travel 45 feet with the movement of the walkway and then back again against the movement of the walkway. What is Karen's normal walking speed?
Click here to see answer by ankor@dixie-net.com(15746) |
Question 485924: Two executives in cities 400 miles apart drive to a business meeting at a location on the line between their cities. They met after 4 hours. Find the speed of each car if one travels 20 miles per hour faster than the other.
Click here to see answer by htmentor(807)  |
Question 486605: Can you please help me with those problems???
1. Suppose that
|a - b| + |b - c| + |c - d| + ... + |x - y| + |y - z| + |z - a| = 20:
What is the maximum possible value of |a - b|? What is the maximum possible value of |a - n|?
2. For what constants k does the equation
k2^x + 2^-x = 3 have only one real solution x?
3. How many positive integers n satisfy square root of n equal to 5.
Thank you very much for your help!!!!
Click here to see answer by chessace(471)  |
Question 486642: Should I add all the numbers on the chart to get my total?
An online retailer started had a sale that lasted five days. The line graph below shows how many people visited the site on each day of the sale. Approximately how many people visited the site during the sale? Assume that people who visited on more than one day were only counted once.
day 1, 20,000
day 2, 25,000
day 3, 30,000
day 5, 25,000
Click here to see answer by chessace(471) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510
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