Tutors Answer Your Questions about Linear-systems (FREE)
Question 1026240: A test is worth 200 points. The test consists of true and false questions worth 6 points each and multiple choice questions are worth 13 points each. How many multiple choice questions are on the test and true and false question?
Click here to see answer by stanbon(75887)  |
Question 1026238: A test is worth 200 points.Th test consist of true and false questions worth 6 points each and multiple choice questions are worth 13 points each.how many multiple choice questions are on the test and true and false questions?
Click here to see answer by robertb(5830)  |
Question 1026525: I need help with this problem, tristian paid $17.50 to buy 2 pounds of peanuts and 3 pounds of cashews. Rivka paid $19.00 to buy 5 pounds of peanuts and 2 pounds of cashews. If both paid the same price per pound, what was the price per pound for the cashews?
Click here to see answer by rothauserc(4718)  |
Question 1026525: I need help with this problem, tristian paid $17.50 to buy 2 pounds of peanuts and 3 pounds of cashews. Rivka paid $19.00 to buy 5 pounds of peanuts and 2 pounds of cashews. If both paid the same price per pound, what was the price per pound for the cashews?
Click here to see answer by mananth(16946)  |
Question 1026532: I need help with this problem, during the past year, ms.nguyen invested $9,000. Some of her money was invested in certificates of deposits paying 4% annually and the rest was invested in stocks paying 7.5% annually. She received a total of $500 from these investments for the year. How much did she invest in the certificates of deposit paying 4%?
Click here to see answer by mananth(16946) |
Question 1026520: Three friends each have different monthly payment plans for sending text messages.
Naomi pays a flat fee of $30 for an unlimited number of text messages.
Tina pays a base fee of $6.00 plus $0.10 per text message.
Chris pays a base fee plus $0.05 per text message. Last month, he paid $18.00 for 100 text
messages.
Naomi researched how much she would have to pay if she switched to Tina or Chris's plan. She
decided that her plan is the least expensive based on the number of text messages she uses each
month. What is the minimum number of text messages Naomi must use each month for her plan to be
the least expensive?
Click here to see answer by josmiceli(19441)  |
Question 1028038: During strenuous exercise an athlete can burn 12 calories per minute on the treadmill and 8.5 calories per minute on the elliptical. The athlete uses both machines and burns 325 calories in 30 minutes. How many minutes does the athlete spend on each machine?
Click here to see answer by fractalier(6550)  |
Question 1028038: During strenuous exercise an athlete can burn 12 calories per minute on the treadmill and 8.5 calories per minute on the elliptical. The athlete uses both machines and burns 325 calories in 30 minutes. How many minutes does the athlete spend on each machine?
Click here to see answer by Cromlix(4381)  |
Question 1028392: Hi I am so confused on how to work this because from my understanding, you can get rid of 2 letters when trying to find one. The three I have are 4x+5y+z=23, 2x-5y-z=-11, 3x+y+3z=-5. So far, all i have is x=2. Thank you!
Click here to see answer by LinnW(1048)  |
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