Questions on Word Problems: Miscellaneous Word Problems answered by real tutors!

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Question 481436: a stone is thrown vertically up with a velocity of 20m/s.
determine
A. the maximum height of the ball will reach to
B. the time of flight of the ball

Click here to see answer by Alan3354(69443)

Question 481435: a ball in thrown vertically up with a velocity of 10m/s.
A.determine the time it takes for the ball to reach the maximum height.
B. the speed by which the ball will fall back to the point from where it was thrown.
Click here to see answer by Alan3354(69443)

Question 481335: What quantity of 65 per cent acid solution must be mixed with a 25 per cent solution to produce 672 mL of a 50 per cent solution?
Click here to see answer by ankor@dixie-net.com(22740)

Question 481520: You watch x thirty-minutes TV shows and y sixty-minute TV shows in one week. Write a variable expression representing the total number of minutes you spend watching television that week.
x + y = 90
30 + 60 = 90

Click here to see answer by Theo(13342)

Question 481445: You worked 18 hours last week and earned a total of $124 before taxes. Your job as a lifeguard pays $8 per hour, and your job as a cashier pays $6 per hour. How many hours did you work at each job?

Click here to see answer by ankor@dixie-net.com(22740)

Question 481855: the formula for degrees celsius is : C=5/9(F-32) were F is fahrenheit, solve for F and what would 10 degrees celsius be in fahrenheit?
Click here to see answer by stanbon(75887)

Question 481894: 4500 people responded to a survey asking how people get to work. If 63% of those responding drove a car to get to work, how many people actually responded with that answer?
Click here to see answer by ewatrrr(24785)

Question 481909: If x^2 - 5x +4 = 0 , then x =
Click here to see answer by stanbon(75887)

Question 481909: If x^2 - 5x +4 = 0 , then x =
Click here to see answer by ewatrrr(24785)

Question 481906: two sides of a rectangular park are 50 meters and 120 meters long. A path runs diagonally from one corner of the park to the opposite corner. The length of the path must be?
Click here to see answer by ewatrrr(24785)

Question 481954: suppose a computer processor can preform about 1.8 billion operation per second. how many operations can it preform in 0.6 seconds?
Click here to see answer by stanbon(75887)

Question 481968: Compare: 643,251 633,512 and 633,893
The answer is 633,512.How did they come up with the answer?
Click here to see answer by richard1234(7193)

Question 482097: A city has a population of 230,000 people. Suppose that wach year the population grows by 5.5% . What will the population be in 13 years?
Click here to see answer by rfer(16322)

Question 482393: Simplifying by collecting like terms: I have a math problem that reads: Subtract the sum of -3m and -6p from their difference. My teacher says the answer is -12p. I am having trouble understanding the wording and setting up the problem. Can you help me solve this?
Thank you!

Click here to see answer by Earlsdon(6294)

Question 482434: Jodie bikes 8 km/h faster than robert in the same time it takes robert to bike 30km, Jodie can bike 54km. How fast does each bicyclist travel?
I have done plenty of problems like this , however, now I just cant think right now. Can anyone help me?
Click here to see answer by ankor@dixie-net.com(22740)

Question 482549: Use the five steps for problem solving to answer the following question. Please show all of your work.
The Johnson County Carnival costs $15 plus $0.50 per ride. The Jefferson County Carnival costs $10 plus $1.00 per ride. How many rides should you plan on
riding to make the Johnson County Carnival less expensive than the Jefferson County Carnival?
Click here to see answer by mananth(16946)

Question 482727: Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression. Express answers with positive exponents.
(-33x^-2y^2)^3
________________
( 165x^-1)
Someone please help me solve this?
Click here to see answer by stanbon(75887)

Question 482833: If someone could help me, please..
Simplify the following expression, and rewrite it in an equivalent form with positive exponents.
19x^-3y^-1
_________
57x^-4y^-3
Click here to see answer by cleomenius(959)

Question 482838: Simplify the following expression; express in terms of i.
square root -18

please help.
Click here to see answer by MathLover1(20849)

Question 482839: Simplify the following expression.
square root -14 and square root -56
I don't understand this.
Click here to see answer by MathLover1(20849)

Question 482852: short answer, of 23 college sophomores at crocodile community college , 12 preferred pepperoni pizza, 7 preferred supreme, and 4 preferred cheese. if we picked a college sophomore at crocodile community college at random, what is the probability that he or she would prefer pepperoni? give solution eactly in random fraction form.
Click here to see answer by jorel1380(3719)

Question 482836: Help me please....
Use scientific notation to multiply the following two numbers. Express the answer using scientific notation; retain all nonzero decimal places.
(8.1 � 108) � (4.2 � 103)
Click here to see answer by rfer(16322)

Question 483120: Please help me with this word problem. Twenty minus the product of a number and two is equal to four squared. I got this from a math book my mom bought. It is my homework. It hasn't made much sense to me. Thank you for your time.(*.*)
Click here to see answer by edjones(8007)

Question 483216: A 40 foot beam is to be cut in two. If one portion is one third the length of the other portion, what are the two lengths of the portions?
Click here to see answer by edjones(8007)

Question 483211: If your gas tank holds 22 gallons and your tank is 5/8 full, how much would it cost to full up your gas tank if gas cost $3.23/gal?
Click here to see answer by edjones(8007)

Question 483226: I have two questions:
Many college graduates who are employed full-time have longer than -hour work weeks. Suppose that we wish to estimate the mean number of hours, , worked per week by college graduates employed full-time. We'll choose a random sample of college graduates employed full-time and use the mean of this sample to estimate . Assuming that the standard deviation of the number of hours worked by college graduates is hours per week, what is the minimum sample size needed in order for us to be confident that our estimate is within hours per week of ?
Second Question:
Bags of salt that are hand packed at a shop have a μ of 500 g and a σ of 35 g. The bags are packed in boxes of 100 units.
Calculate the probability that the mean weight of the bags in a box is less than 495 g.

Click here to see answer by edjones(8007)

Question 483212: when we placed a boy 4 feet from the fulcrum, and a girl 12 feet from the fulcrum on the side of the teeter board, they balance a man weighing 150 pounds who is seated 6 feet from the fulcrum on the other side. also, the board is balanced if the boy moves to 8 feet and the girl to 6 feet from the fulcrum on their side. Find their weights
Click here to see answer by mananth(16946)

Question 483275: A company manufactures three types of t.vs A,B and C. The company manufactures four less type B than twice A, and one more type B than the sum of types A and type C. If the total number of t.vs manufactured per week is 51. How many of each type of t.v are manufactured.
Can someone please help this question has me in a twist!
Click here to see answer by mathstutor494(120)

Question 483362: If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it?

Click here to see answer by Alan3354(69443)

Question 483413: In a certain lake, it is estimated that the fish population has been doubling in size every 80 weeks. Write an exponential growth equation of the form y=ae^kt that models the growth of the fish population, where t is given in weeks, if the initial population was 5000.
Click here to see answer by stanbon(75887)

Question 483516: A can do 1/3 of certain work in 10 days and B can do 2/5 of the same work in 8 days find how much work can B do in 1 day.

Click here to see answer by emargo19(101)

Question 483516: A can do 1/3 of certain work in 10 days and B can do 2/5 of the same work in 8 days find how much work can B do in 1 day.

Click here to see answer by MathTherapy(10549)

Question 483521: A project can be done by 8 girls in 5 days. 5 boys can do the same project in 6 days. How long will it take for 3 boys and 6 girls to do the job?

Click here to see answer by emargo19(101)

Question 483625: A number decreased by 32 is -58. Find the number
Click here to see answer by rfer(16322)

Question 483649: Sara can clean an attic in 9 hours.
Floyd cleans the same attic in 15 hours
How fast can they clean the attic if they work together?
What equation do you use to get the answer?
Click here to see answer by Tatiana_Stebko(1539)

Question 483688: Need help..
Suzie�s flower shop estimates that supplies costs for one month will be given by the polynomial 2x^2 + 14x � 9. She estimates that utilities costs for one month is given by 12x � 3. Find and simplify an expression that would estimate Suzie�s total costs for one month.
Click here to see answer by stanbon(75887)

Question 483692: Eddie is flying a jet against the wind on a 330 mile trip. Flying with the same wind speed, Eddie could fly a 550 mile trip in the same amount of time. If Eddie's jet flies at 220 miles per hour in still air, what is the speed of the wind? Show your work to see how you worked it out.
Click here to see answer by jorel1380(3719)

Question 483693: There are two small valves in the bottom of a tub filled with water. If opened, one valve will empty the tub in three hours; the other will empty it in six hours. If both valves are opened at the same time, how long will it take to empty the tub? Show your work in Algebraic form.
Click here to see answer by jorel1380(3719)

Question 483731: find a pattern in the list of numbers.then find the next number in the list.
1024,256,64,16,4
Click here to see answer by MathLover1(20849)

Question 483124: explain how you can have 5 points in a coordinate plane so that you are sure no three of these points will be collinear.

Click here to see answer by richard1234(7193)

Question 483789: Darla is building a new desk. To make sure she had made a square corner, she measures 4 ft from the corner along one edge and 3 ft from the corner along the other edge. How long should the diagonal be between those two points if the corner is a right angle?
diagonal=___ ft.
round to the nearest thousandth.
Click here to see answer by Alan3354(69443)

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