Tutors Answer Your Questions about Miscellaneous Word Problems (FREE)
Question 1028111: The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 50 feet is 24 pounds per square inch. What is the pressure at 170 feet?
Click here to see answer by Fombitz(32388)   |
Question 1028613: I need help on this plz A girl starts to walk to her school, which is 20 miles away, at 6:50 and at a rate of 3 miles per hour. After a while, her dad picks her up and drives her through the remainder of the way at 30 miles per hour. If they arrived at school at 9:00, how far did she walk?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1028613: I need help on this plz A girl starts to walk to her school, which is 20 miles away, at 6:50 and at a rate of 3 miles per hour. After a while, her dad picks her up and drives her through the remainder of the way at 30 miles per hour. If they arrived at school at 9:00, how far did she walk?
Click here to see answer by KMST(5328)  |
Question 1028727: Can you help me solve this? 1 mole of carbon-12 contains 6.022*10^23 carbon-12 atoms. with a mass of 12g.
Calculate the mass of 1 carbon-12 atom with scientific notation.
Calculate the mass of carbon-12 atoms in 20.0g of carbon-12.
Calculate the number of moles of carbon-12 atoms in 20.0g of carbon-12
Click here to see answer by mananth(16946)  |
Question 1028707: Fabienne and her son must take the train. They are told that a child's ticket is only 2/3 the cost of an adult's ticket. Knowing that an adult's ticket costs $8.50 more than a child's ticket, find the price of each person's ticket.
Click here to see answer by josmiceli(19441)  |
Question 1028726: How can I solve this?
Year- 1988- 582 trees ,1989- 620 trees, 1990- 658 trees, 1992-734 trees, 1995-848 trees, 1997- 924 trees
Assuming no trees die, what is the total number of trees in the year 2020?
The city claims it can have 5,000 trees in the city by 2088. Is this possible?
What formula did you use to prove it?
Click here to see answer by Theo(13342)  |
Question 1028603: 1 mole of carbon-12 contains 6.022*10^23 carbon-12 atoms with a mass of 12g.
What is the mass of 1 carbon-12 atom using scientific notation?
What is the mass of carbon-12 atoms in 20.0g of carbon-12?
Calculate the number of moles of carbon-12 atoms in 20.0g of carbon-12
Click here to see answer by Theo(13342) |
Question 1028745: Not sure how to go about the question, simultaneous equations?
The question is as follows:
A farmer has a straight, fenced road along the boundary of his property. He wises to fence an enclosure and has enough materials to erect 500m of fence. What would the dimensions to enclose the largest possible rectangular area, assuming that he uses the existing boundary fence as one of the sides?
Click here to see answer by Fombitz(32388) |
Question 1028885: Alexander runs his own canteen. This morning, he sold 13 "chef's plates" and 32 "quick and delicious" snacks. He made $143.25 on these sales. In the afternoon, he sold 7 "chef's plates" and 23 "quick and delicious" snacks, and collected $93. What are the costs of each meal?
Click here to see answer by mananth(16946) |
Question 1028760: A rectangular box is to have a square base and a volume of 40 ft3. If the material for the base costs $0.35/ft2, the material for the sides costs $0.05/ft2, and the material for the top costs $0.15/ft2, determine the dimensions of the box that can be constructed at minimum cost.
Click here to see answer by ankor@dixie-net.com(22740) |
Question 1028702: Alexander runs his own canteen. This morning, he sold 13 "chef's plates" and 32 "quick and delicious" snacks. He made $143.25 on these sales. In the afternoon, he sold 7 "chef's plates" and 23 "quick and delicious" snacks, and collected $93. Use this information to find the cost of each meal.
Click here to see answer by Cromlix(4381)  |
Question 1029043: A library expansion, begun in 2002, was expected to cost $101 million. By 2006, library officials estimate the cost would be $25 million over budget. By what percent did the actual cost exceed the initial estimate?
Click here to see answer by stanbon(75887) |
Question 1029104: Let's look at another one of homer's rocket launches. It was launched from ground level with an initial velocity of 208 feet per second. its distance in feet from the ground after t seconds is given by S(t)=-16t^2+208t.
What is the maximum altitude (height) the rocket ail attain during its flight?
Click here to see answer by stanbon(75887) |
Question 1029120: In the lab, Maya has two solutions that contain alcohol and is mixing them with each other. She uses
500
milliliters less of Solution A than Solution B. Solution A is
20%
alcohol and Solution B is
17%
alcohol. How many milliliters of Solution B does she use, if the resulting mixture has
492
milliliters of pure alcohol?
Click here to see answer by josmiceli(19441) |
Question 1029114: you arrive at another model rocket competition and you have remembered to bring your small skid fuel engines. your rocket is launched form the rest and the solid fuel engine delivers a constant acceleration of 8.2 m/s^2 for 5 seconds, after which the fuel is used up. Using homer's formula, S=1/2at^2, find the altitude of the rocket when the engine shuts down.
Click here to see answer by Alan3354(69443)  |
Question 1029153: Steve has 50 notebooks with red covers but only 40 notebooks with blue covers. If he uses up 6 notebooks with red covers and 4 with blue covers each month, in how many months will he have the same number of red as blue notebooks?
PS:If x is the number of months, then the equation is????
Click here to see answer by josmiceli(19441) |
Question 1029066: If each of them tells 1 person, and then everybody tells exactly 1 other person, and so on, how long will it take until all 450 students in the school hear the rumor? Assume that the rate for telling the next person is 1 hour. That is, initially Jack and Jill know; after 1 hour, 2 more people know; after 2 hours, 2 more people know
Click here to see answer by josmiceli(19441) |
Question 1029081: Jason is a sales person in the electronics department have a store. He is 17% sure of his goal for the week. His goal is to earn $600 for each CD player he sells he earns $51 how many cd players does he need to sell in order to meet his goal?
Click here to see answer by Cromlix(4381) |
Question 1029183: You throw the rocket from problem #4 straight up in the air with an initial velocity of 50 feet per second, and the rocket leaves your hand 6 feet above the ground. if you catch it when it falls back to a height of 5 feet, how long was the rocket in the air? does the increase in initial velocity increase or decrease the air time of the rocket?
Click here to see answer by Alan3354(69443) |
Question 1029207: A library expansion, begun in 2002, was expected to cost $107 million. By 2006, library officials estimate the cost would be $45 million over budget. By what percent did the actual cost exceed the initial estimate?
Click here to see answer by stanbon(75887) |
Question 1029112: You arrive at a model rocket competition only to discover that you left your small solid fuel engines at home. in a fit of anger, you throw the engine-less rocket straight up in the air. the rocket leaves your hand 6 feet above the ground with an initial throw velocity of 45 feet per second. realizing that you will need the rocket for future competitions, you catch the rocket when it falls back to a height of 5 feet. for how many seconds was the rocket in the air? what formula gives us this information?
Click here to see answer by Alan3354(69443) |
Question 1029113: you throw the rocket straight up in the air with an initial velocity of 50 feet per second, and the rocket leaves your hand 6 feet above the ground. if you catch it when it falls back to a height of 5 feet, how long was the rocket in the air? does the increase in initial velocity increase or decrease the air time of the rocket?
Click here to see answer by Alan3354(69443) |
Question 1029115: you arrive at another model rocket competition and you have remembered to bring your small skid fuel engines. your rocket is launched form the rest and the solid fuel engine delivers a constant acceleration of 8.2 m/s^2 for 5 seconds, after which the fuel is used up. using the formula V=at, find the velocity (m/s) when the engine shuts down
Click here to see answer by Alan3354(69443) |
Question 1029111: According to the National Association of Rocketry, the current model rocket altitude record in the "F Altitude" event for Ages 14-18 division is 1430 meter. from this record-setting altitude, the rocket is motionless as it behind its free-fall descent back to the ground. using the equation, h(t)=-4.9t^2+V^0+h^0, find how long it will take for the rocket to hit the ground after reaching it's high point
Click here to see answer by Alan3354(69443) |
Question 1029227: Allan and Dave bowl together and their combined total score for one game was 375 points. Allan’s score was 60 less than twice Dave’s. What were their scores?
Which is a system of equations to model the problem if x represents Dave's score and y represents Allan's score?
Click here to see answer by Fombitz(32388) |
Question 1029259: Latoya bought a desktop computer and a laptop computer. Before finance charges, the laptop cost
$300
more than the desktop. She paid for the computers using two different financing plans. For the desktop the interest rate was
9%
per year, and for the laptop it was
7%
per year. The total finance charges for one year were
$365
. How much did each computer cost before finance charges?
Click here to see answer by stanbon(75887) |
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