Questions on Word Problems: Linear Equations And Systems Word Problems answered by real tutors!

Tutors Answer Your Questions about Linear Equations And Systems Word Problems (FREE)

Question 369019: y=-1/6x-2
12x-2y=-14
would this be parallel,perpendicular or neither
Click here to see answer by Fombitz(13828)

Question 369133: determine the slope of the line passing through each pair of points.
(9,4) and (5,-3)
Click here to see answer by ewatrrr(10682)

Question 369275: A bus traveled a distance of 180 km. How long will it take for a bus to make this trip if it has a speed of 45km/h?
Click here to see answer by mananth(12270)

Question 369275: A bus traveled a distance of 180 km. How long will it take for a bus to make this trip if it has a speed of 45km/h?
Click here to see answer by acalgebra(30)

Question 369291: A bus traveled a distance of 180 km. How long will it take for a bus to make this trip if it has a speed of 45 km/h?
Click here to see answer by rfer(12726)

Question 369453: solve: tan2x-3cot2x,for 0
Click here to see answer by Fombitz(13828)

Question 369549: write y=7/2x-6 in standard form.show your work justify each steo
Click here to see answer by Alan3354(31487)

Question 369560: The sum of twice one number and 3 times another is 41. If the second is subtracted from the first, the difference is 8. What are the numbers?
Click here to see answer by acalgebra(30)

Question 369037: Scorchin’ Hot Sauce
Yield: 1 pint
1 pt tomato sauce with onions
4 green peppers, diced
8 hot chili peppers, seeded and diced
Red Hot Sauce
Yield: 1 pint
1 pt tomato sauce with onions
5 green peppers, diced
4 hot chili peppers, seeded and diced
To fill an order for Sizzlin’ Sauce sauces, you bought 1050 green peppers and
1200 hot chili peppers.
• Write and graph a system of inequalities to represent the number of
pints of each kind of sauce you can make. Refer to the recipes above.
• Select one solution of the system and determine how many peppers
you will have left over.
Activity 2: Analyzing
Suppose you make $1.20/pt profit on Red Hot Sauce and $1.00/pt profit on
Scorchin’ Hot Sauce. Using the restrictions from Activity 1, decide how
much of each sauce you should make and sell to maximize your profit.What
is the maximum profit?
Click here to see answer by qwertyuiop2(1)

Question 369883: Giselle pays $190 in advance on her account at the athletic club.Each time she uses the club,$5 is deducted from the account.The situation can be moldeled by the equation b=190-5x,where x is the number of visits and b is the total account balance
graph the equation and find the account balance after 7 visits
Click here to see answer by mananth(12270)

Question 370223: An angry construction worker throws his wrench downward from a height of 128 feet with an initial velocity of 32 feet per second. The height of the wrench above the ground after seconds is given by S(t) = -16y^2 -32t +128.
a) What is the height of the wrench after 1 second?
b) How long does it take for the wrench to reach the ground?
Click here to see answer by lefty4ever26(59)

Question 370343: Dipa has 7 more Rs.2 coins than 50 paisa coins. If the value of all the coins is Rs 76.50, find the number of each type of coins.
Click here to see answer by mananth(12270)

Question 371081: On three consecutive passes, a football team gains 10 yards, loses 31 yards, and gains 47 yards. What number represents the total net yardage?
The total net yardage is?

Thank you so much in advance for any help!
Bridget
Click here to see answer by unlockmath(1614)

Question 371088: the width of a rectrangle is 3 feet less than its length. The perimeter of the rectangle is 70 feet. Find the dimensions. Prior useful knowledge: P=2L+2W How do I do this?
Click here to see answer by rfer(12726)

Question 371078: Amy paid for $66.48 for a pair of running shoes during a 40% off sale. What was the regular price?

What was the regular price?
(round to the nearest cent if necessary)

Thanks in advance for any help!
Bridget
Click here to see answer by rfer(12726)

Question 371075: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 miles per hour and train B is traveling at 50 miles per hour. Train A passes a train station at 6:10pm. If train B passes the same station at 6:22pm.,at what time will train B catch up to train A?
I need a time for when train B will catch up to train A

If you can help, I REALLY appreciate it. I have such a hard time with certain word problems.
Bridget
Click here to see answer by rfer(12726)

Question 371083: Soybean meal is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb mixture that is 11% protein?

How many pounds of cornmeal should be in the mixture?
How many pounds of soybean should be in the mixture?

Thank you very much for much for any and all help that you can provide!

Bridget

Click here to see answer by jvan(28)

Question 371202: A rectangular field with area 4500 square meters is enclosed with 300 meters of fencing. Find its dimensions. (HINT: set up a system)
Click here to see answer by mananth(12270)

Question 371241: A car traveled 715 km in 11 hours. What was its average speed?
Click here to see answer by mananth(12270)

Question 371240: A board 1.2 m long is cut into two so that the length of the longer piece is 15 cm long than twice the length of the shorter piece. How long is the shorter piece?
Click here to see answer by mananth(12270)

Question 371243: Abu ran for 1/3 of an hour and then walked for half an hour at the rate of 3 km/h. In all, he had covered 4 km. How fast did he run?
Click here to see answer by mananth(12270)

Question 371294: Can you explain the correct way to work this systems of linear equations word problem out? Thanks!
Problem: A bricklayer begins work at 7 a.m., laying 170 bricks per hour. Two hours later his apprentice joins him and lays 80 bricks per hour. At what time will they have laid 965 bricks?
Click here to see answer by stanbon(57940)

Question 371293: Can you show the correct way to work this system of linear equations word problem out? Thanks!
Problem: Water and bleach are to be mixed in a ration of 50 to 1. How many milliliters of each are needed to make 800ml of the mix?
Click here to see answer by stanbon(57940)

Question 371292: Can you show me the correct way to work this problem through systems of linear equations? Thanks:
Problem: Joe has $1.15 in dimes and nickles. The number of nickels is one less than twice the number of dimes. How many nickles and how many dimes does he have?

Click here to see answer by stanbon(57940)

Question 371508: A dehydrated patient needs 6.8% saline unfortunately the hospital only has 2% and 8% bags how many liters of these solutions should be mixed together to yield 2 liters
Click here to see answer by Fombitz(13828)

Question 371916: A dehydrated patient needs a 6.1% saline IV. Unfortunately the hospital only has bags of 5% and 7% saline solutions. How many liters of each of these solutions should be mixed together to yield 2 liters of the desired concentration?
Click here to see answer by Fombitz(13828)

Question 372091: The sum of two numbers is 84. One number is three times the other. Find the numbers.Put your answer in this form: The numbers are 3 and 6.
Click here to see answer by ewatrrr(10682)

Question 371763: To determine the number of deer in a game preserve, a conservationist catches 807 deer, tags them and lets them loose. Later, 615 deer are caught; 205 of them are tagged. How many deer are in the preserve?

Click here to see answer by scott8148(6628)

Question 373386: Boris can jog to work in 2/3 of an hour. When he rides his bike, it takes him 1/4 of an hour. If he rides 9 miles per hour faster than he jogs, how far away is his work?
Click here to see answer by robertb(4012)

Question 373422: Silver gym plan is flat rate $20 plus $10 per class and gold plan is $50 per month and $2 per class. When will the two plans equal each other?
Need help asap. Thanks!!! :)
Click here to see answer by josmiceli(9817)

Question 373499: there are 34 students in mrs henrys class if there are eight more boys than girls in the class, how many girls are in the class?
can you also do the matrices equation for this question?
Click here to see answer by edjones(7569)

Question 373587: Salem and vernon are 144 miles apart. A car leaves salem traveling towards vernon, and another car leaves vernon at the same time, traveling towards salem. The car leaving salem avergaes 10 miles per hour more than the other, and they meet after 1 hour and 36 minutes. What are the avergae speeds of the carfs?
Click here to see answer by mananth(12270)

Question 373601: One plane ate 520 feet is ascending at a rate of 40 feet per minute, while another plane at 3800 feet is descending at a rate of 120 feet per minute. How long will it take the two planes to be at the same altitude?
Click here to see answer by mananth(12270)

Question 373590: If a plane can travel 470 miles per hour with the wind and 430 miles per hour against the wind, find the speed of the plane in still air.
What is the speed of the plane in still air?
Click here to see answer by ewatrrr(10682)

Question 373755: The number of kilograms (W) of water in the human body varies directly as the total body weight (B). A person who weighs 100 kilograms contains 60 kilograms of water. How many kilograms of water are in a person who weighs 70 kilograms?

Click here to see answer by ewatrrr(10682)

Question 373954: The selling price of the ring is $750. This represents $150 less than three times the cost of the ring. Find the cost of the ring.
Click here to see answer by josmiceli(9817)

Question 374088: The sum of the area s of two circles is 65pi square feet. The length of a radius of the larger circle is one foot less than twice the length of the radius of the smaller circle. Find the length of a radius of each circle.
Click here to see answer by rfadrogane(214)

Question 374315: a rectangular lot has a perimeter of 40 meters and an area of 96 sq. meters. what are the dimensions of a lot?
Click here to see answer by checkley79(3056)

Question 374516: does a ramp that is 160 inches long and 10 inches high meet ANSI requirements? slope of ramp cannot exceed 1/12 (1 over 12)
Click here to see answer by jim_thompson5910(28696)

Question 374581: The rate to rent a certain truck is $55 per day and $.20 per mile.
Your family pays $80 to rent this truck for one day. How many miles did your family drive?

Click here to see answer by ewatrrr(10682)

Question 374890: Write each equation in slope-intercept form and graph it.
6x+2y=2
Click here to see answer by Fombitz(13828)

Question 375025: A lidless box is constructed from a square piece of tin by cutting a 10cm square from each corner and bending up the sides for the box. If the vilume of the box is 1200cm cubed, find the dimensions of the box to the nearest tenth of a centimeter.
Click here to see answer by solver91311(17059)

Question 375138: The sum of two numbers is 27. One number is 2 times as large as the other. What are the numbers?
Click here to see answer by robertb(4012)

Question 375171: I am trying to come up with an algebraic equation to determine the cost of two refrigerators with good energy ratings. I found one with that will cost .1143 cents per kWh and it boasts that it uses 486 kWh per year. I want to compare it with another one I found that will cost .1143 cents per kWh. This one uses 526 kWh per year. If the purchase price of the first refrigerator is $950 and the second is $875, which one will be the better buy after 10 years?
I'm sorry for the long question, I hope someone out there can give me a simple algebraic equation for putting this all together. I'd like to use it again for other appliances in the future.
Click here to see answer by mananth(12270)

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