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Tutors Answer Your Questions about Linear Equations And Systems Word Problems (FREE)
Question 31642: When a bathtub faucet is turned on (and the drain is shut), it can fill a tub in 6 minutes; when the drain is open, a full bathtub can empty in 11 minutes. How long would it take for the bathtub to fill if the water were turned on with the drain left open?
Click here to see answer by mbarugel(146)  |
Question 31641: Alan and Jim were asked by their boss to work on a project. Since Jim had to visit a company's factory outside of the state, Alan started the project alone. After 10 days Jim came back and they worked for 5 days to finish the project. If Alan could have finished the project in 23 days when Alan worked alone from the beginning to the end, how long would it take if Jim had to work alone from the bedid to the end to finish the project? Your answer is supposed to be d days and h hours where d is a positive integer and h is a positive integer or 0.
Click here to see answer by mukhopadhyay(490)  |
Question 31640: A painter can paint a wall in 1 hours and 10 minutes, whereas his assistant can do the same size wall in 2 hours and 30 minutes. Find their work rate of the job per hour when they work together. Your answer is supposed to be a fraction.
Click here to see answer by checkley71(8405)  |
Question 32135: Can you help clearify this for me?
When solving a linear equation in one variable, the objective is to isolate the variable on one side of the equation. What does that mean? Would you please give me an an example?
Thank you very much.
Denise
Click here to see answer by Fermat(127)  |
Question 33015: For some reason I can not set up these kind of word problems:
According to data from the US dept of defense and congressional research service, the estimated annual cost y (in thousands of dollars) per active duty service member in the us armed forces in year x is given by the equation:
6000x-2000y+136000=0 (4< x < 18)
where x=4 corresponds to 1994. find the year in which the estimated annual cost per service member is (a) $92,000 (b) 110,000
-i have tried setting up the equation by substituting 4 for x and then entering both equations in my TI 83. I believe it's an intersection answer between two equations, however, i am not getting anywhere and i have attemped four other similar questions hoping i something would click. There are also no examples in the text i am using to assist. Thank you for any help you may provide.
erin mcavoy
Click here to see answer by stanbon(26259)  |
Question 33015: For some reason I can not set up these kind of word problems:
According to data from the US dept of defense and congressional research service, the estimated annual cost y (in thousands of dollars) per active duty service member in the us armed forces in year x is given by the equation:
6000x-2000y+136000=0 (4< x < 18)
where x=4 corresponds to 1994. find the year in which the estimated annual cost per service member is (a) $92,000 (b) 110,000
-i have tried setting up the equation by substituting 4 for x and then entering both equations in my TI 83. I believe it's an intersection answer between two equations, however, i am not getting anywhere and i have attemped four other similar questions hoping i something would click. There are also no examples in the text i am using to assist. Thank you for any help you may provide.
erin mcavoy
Click here to see answer by xcentaur(357)  |
Question 33142: A company makes unicycles,bicycles and tricycles. Last week they made 88 more bicycles than unicycles, and 5 times as many tricycles as unicycles. If they made 40 more bicycles than tricycles, how many unicycles did they make?
Click here to see answer by sarah_adam(201)  |
Question 33142: A company makes unicycles,bicycles and tricycles. Last week they made 88 more bicycles than unicycles, and 5 times as many tricycles as unicycles. If they made 40 more bicycles than tricycles, how many unicycles did they make?
Click here to see answer by priya(51)  |
Question 33168: Jack collects baseball and football cards.He has 125 cards rotal.The number of baseball cards he has is five more than three times the number of football cards.How many baseball and football cards does he have?
Click here to see answer by sarah_adam(201)  |
Question 33168: Jack collects baseball and football cards.He has 125 cards rotal.The number of baseball cards he has is five more than three times the number of football cards.How many baseball and football cards does he have?
Click here to see answer by priya(51)  |
Question 33167: Two numbers have a difference of 47.One number is three more than five times the other.Write a system of equations that could be used to find the two numbers.It says write a system of equations to represent each situation.
Click here to see answer by sarah_adam(201)  |
Question 33167: Two numbers have a difference of 47.One number is three more than five times the other.Write a system of equations that could be used to find the two numbers.It says write a system of equations to represent each situation.
Click here to see answer by priya(51)  |
Question 33356: I really need help on this problem. Its very confusing to me.
The equation that expressed Celsius temperature C in terms of Fehrenheit temperature F is linear. Water freezes at 32 degreesF or 0 degreesC and boils at 212 degreesF or 100 degreesC. Find the linear equation of C in terms of F. Please show me a complete solution so I know how to do this for future reference. Thank You!!!!
Click here to see answer by stanbon(26259)  |
Question 33653: The cost for a long-distance telephone call is $0.36 for the
first minute and $0.21 for each additional minute or portion thereof. Write an
inequality representing the number of minutes a person could talk without
exceeding $3.
Click here to see answer by checkley71(8405)  |
Question 33772: Floyd has 16 coins in pennies, nickels, and dimes. The number of dimes is equal to the sum of the number of pennies and number of nickels. If the total value of the coins is $1.08, how many of each kind does he have?
Click here to see answer by Paul(988)  |
Question 33909: I am having a bit of trouble with this one. Please help!
Alan needs 250 ml of a solution that is 45% alcohol. If he has a solution that is 50% alcohol and purified water (which is 0% alcohol, how much water should he use?
I have tried everything I think the 0% is really throwing me off.
If you can help that would be so great...
Click here to see answer by Paul(988)  |
Question 33972: A company's profit for the first half of the year is $2,750,000 greater than the profit for the second half. If the total annual profit is $3,635,000, find the profit for the first half year and the second half-year.
Click here to see answer by fanism(39)  |
Question 34128: Two jets leave the same airfield at the same time, traveling in opposite directions. One jet travels 80 miles faster than the other. In 8 hours the planes are 7200 miles apart. What is the speed of each plane?
Click here to see answer by Paul(988)  |
Question 34126: A total of $15,000 is deposited into two simple interest accounts. The annual interest rate in one account is 14% and annual interest rate in the second account is 10%. How much must be invested into each account to earn $1740 in interest?
Click here to see answer by venugopalramana(3286)  |
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