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

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Question 601293: At a certain time, Janice notices that her digital watch reads a minutes after two o’clock. Fifteen minutes later, it reads b minutes after three o’clock. She is amused to note that a is six times the value of b. What time was it when she looked at her watch for the second time?
Click here to see answer by josmiceli(9697)

Question 601296: A box containing 3 oranges, 2 apples, and one banana weighs 15 units. Another box containing 5 oranges, 7 apples, and 2 bananas weighs 44 units. A third box containing 1 orange, 3 apples, and 5 bananas weighs 26 units. How much does each fruit weigh?
Please help.
Click here to see answer by flame8855(424)

Question 601349: The highest mountain peak in the world is Mt. Everest, located in the Himalayas. The height of this enormous mountain was determined in 1856 by surveyors using trigonometry long before the mountain was first climbed in 1953. This difficult measurement had to be done from a great distance. At an altitude of 14,545 feet on a different mountain, the straight line distance to the peak of Mt. Everest is 27.0134 miles and its angle of elevation is 5.52 degrees. Approximate the height in feet of Mt. Everest. (1 mile = 5280 feet).
Click here to see answer by ankor@dixie-net.com(15661)

Question 601367: If the number of white owls in Illinois has decreased from 750 to 500 in 10 years, approximate the annual rate of decrease within 3 decimals.
I really struggle with the word problems, would appreciate any help. Thank you.
Click here to see answer by Edwin McCravy(8912)

Question 601451: A bag contains a total of 20 batteries, of which six are defective. Selecting two at random, without replacement, determine the probability that none of the batteries you select are good. Show all work.
3/5
3/10
3/38
9/100
Click here to see answer by Alan3354(30993)

Question 601435: How do I find the answer to the following math word problem? "Mila took a trip and drove the first 20 miles at a speed of 50 mph. If she wants her average speed for the entire trip to be 40 mph, how fast should she drive for the last 70 miles of her trip?"

Click here to see answer by htmentor(789)

Question 600933: Associate Level Material
Appendix E
Radicals
Application Practice
Answer the following questions. Use Equation Editor to write mathematical expressions and equations. First, save this file to your hard drive by selecting Save As from the File menu. Click the white space below each question to maintain proper formatting.
Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions.
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on Earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where C is a constant, and r is the distance that the object is from the center of Earth.
a. Solve the equation for r.
b. Suppose that an object is 100 pounds when it is at sea level. Find the value of C that makes the equation true. (Sea level is 3,963 miles from the center of the Earth.)
c. Use the value of C you found in the previous question to determine how much the object would weigh in
i. Death Valley (282 feet below sea level).
ii. the top of Mount McKinley (20,320 feet above sea level).
2. The equation gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet.
a. Solve this equation for h.
b. Long’s Peak in Rocky Mountain National Park, is 14,255 feet in elevation. How far can you see to the horizon from the top of Long’s Peak? Can you see Cheyenne, Wyoming (about 89 miles away)? Explain your answer.

Click here to see answer by richard1234(5390)

Question 601514: The Royal Fruit Company produces two types of fruit drinks. The first type is 65% pure fruit juice, and the second type is 90% pure fruit juice. The company is attempting to produce a fruit drink that contains 85% pure fruit juice. How many pints of each of the two existing types of drink must be used to make 80 pints of a mixture that is 85% pure fruit juice?
Click here to see answer by stanbon(57395)

Question 601373: Determine the pH of saccharin, a sugar substitute, which has H+ concentration of 4.58x10^-7 mol/L.
This one seem to come out of left field! Could I please get some help on this. Thank you.
Click here to see answer by richard1234(5390)

Question 601352: Find a nice simple formula for finding what sum is for ANY value n. Explain why it works.
2+4+6+8+...+2n=?

Click here to see answer by richard1234(5390)

Question 601678: solve. by checking work records a plumber finds that worker A can do a certain job in 12 hours.worker B can do the same job in 9 hours. how long would it take if they worked together? (algebra)
Click here to see answer by solver91311(16897)

Question 601819: Fill in the four blanks with the correct symbol such that the statement is true.
Use + , - , x, and ÷

The problem 2.56 _____ 6.4 ______ 51.2 _______ 17.4 ______ 89.7 = 72.62
Click here to see answer by flame8855(424)

Question 602123: To estimate animal populations, biologiest count the total number of animals in a small section of a habitat. TAhe total population of animals is directly proportional to the size of the habitat (in acres) polled. Write an equation using only one variable that could be used to solve for the constant of variation k.
Click here to see answer by stanbon(57395)

Question 602229: The population P of a certain city t years from now is given by
P=20,000e^0.05t
How many years from now will the population be 50,000?
Click here to see answer by nerdybill(6963)

Question 602453: the ratio x:y = 1:2 and the ratio y:z = 4:5
what is the ratio x:z?
Click here to see answer by jim_thompson5910(28598)

Question 602453: the ratio x:y = 1:2 and the ratio y:z = 4:5
what is the ratio x:z?
Click here to see answer by ewatrrr(10682)

Question 602466: A pebble is hurdled upward from the top of a 1120-foot-tall building with an initial velocity of 144 feet per second. Neglecting air resistance, the height h(t) in feet of the pebble after t seconds is given by the polynomial function:
h(t)=-16t squared + 144t + 1120
When will the pebble hit the ground?
Click here to see answer by stanbon(57395)

Question 602469: Paul can do a job in two hrs..when Paul works alone ,he can do five jobs in 15 hrs.How many jobs can Mary do in 12 hrs, alone? Please show me step by step.
Click here to see answer by stanbon(57395)

Question 602812: At a certain party, first the ratio of boys to girls was five to three.If,after 10 boys left,the ratio became one to one, how many people were originally at the party ?Please show me the steps.
A.48 B.40 c.56 D.32 E. None of these
Click here to see answer by lwsshak3(6522)

Question 602808: If the average of m numbers is y, and when x is added to the m numbers, the average of the m+1 numbers is b, then x is equal to which of the following.Please show me the steps.
A. my+b B. 2my-mb C. b-y+my D. b(m+1)-my
E. none of these
Click here to see answer by flame8855(424)

Question 602805: A student has taken T tests and has a 90 average What score must he get on his next test in order to raise his average to 91 ? Please show me the steps.
A. T+91 B. 2T+91 C.T-91 D.T+2 E.None of these

Click here to see answer by ankor@dixie-net.com(15661)

Question 602831: 8146 to the nearest hundred
Click here to see answer by stanbon(57395)

Question 602877: How many three letter "words" composed from the 26 letters of the alphabet are possible? No duplication of letters are permitted.
Click here to see answer by flame8855(424)

Question 602802: Story problem: LaToy had a large collection of basketball cards. She decided to give half of them to her friend, and a fourth to her brother. She still has 150 cards left. How many cards did she start with?
Click here to see answer by htmentor(789)

Question 602969: It takes Nina 3 hours to proof a chapter of Hawkes Learning Systems' Statistics book and it takes Cynthia 12 hours. How long would it take them together?
Click here to see answer by ewatrrr(10682)

Question 603039: A boy is standing next to the chimney on top of the roof of a house, which is located on the top of a cliff. The chimney runs straight down into the fireplace at the floor of the basement of the house. The cliff on which the house is built rises 50 feet above the ocean below. The roof of the house is 18 feet above the ground on which it is built, and the floor of the basement is 9 feet below ground. He throws a ball straight upward with an initial velocity of 80 feet per second. At the moment the ball is released, the boy's hand is level with the top of the chimney 5 feet above the roof. From this information, it can be shown that the height h of the ball t seconds after it is released from the boy's hand is modeled by the following equation:
h(t)= -16t2 + 80t +73
to the nearest tenth of a second, determine the amount of time after the ball is released from the boy'y hand at which it lands in the fireplace in the basement of the house.
Click here to see answer by stanbon(57395)

Question 603080: Logan and Izzy had the same number of stickers. After Izzy gave him 72 stickers, Logan had 3 times as many stickers as Izzy. How many stickers did they have altogether?
I don't know how to do this.
Click here to see answer by KMST(1874)

Question 603168: An employee is making $12 an hour, if he gets a 5% pay increase what will his new pay rate be?
Click here to see answer by rfer(12670)

Question 603165: A tank can hold 122,000 gallons of liquid. If the tank is filled 3/4 of the way how many gallons are in the tank?
Click here to see answer by rfer(12670)

Question 603147: Please help me with this problem...
32=x-2+8
thanks
Click here to see answer by rfer(12670)

Question 603252: Drew rode his bicycle from his house to school and back. The total trip took 50 minutes. If it took him x minutes to get to school, then it took him _____ minutes to get back from school.
You should be typing a first degree polynomial.

Click here to see answer by ankor@dixie-net.com(15661)

Question 603448: A student's PID (personal identification number) is a sequence of six digits. How many different PID numbers are possible?
Click here to see answer by Alan3354(30993)

Question 603240: Todd rode his bike 50 feet and counted 8 turns of his front wheel how many turns will the wheel make in 100 yards?

Click here to see answer by ankor@dixie-net.com(15661)

Question 603514: In a psychology experiment, there are nine males and seven females availble to form a research group. How many different conbinations are possible if the group is to contain two males and two females?
Click here to see answer by stanbon(57395)

Question 603691: what is all the equivalents to 36/70?

Click here to see answer by richard1234(5390)

Question 603728: 240 people running a race 160 of them have on white shirts 130 of them have on white shorts 68 of them have on neither how many have on both?
Click here to see answer by alicealc(281)

Question 603783: Four ball players have $233 between them. Melvin has $20 more than Harvey, $53 more than Bruce and $71 more than Rollo. How much money did each player have?
Click here to see answer by mananth(12270)

Question 603908: I need some help, no one has been able to answer this question.
A student is designing a club logo to be produced on a computer screen. The outline is a regular pentagon inscribed in a circle with radius 10. One vertex is at (0,10). Find (to the nearest thousandth) the coordinates of the other vertices.
Click here to see answer by stanbon(57395)

Question 603798: Under certain conditions, the power P, in watts per hour, generated by a windmill with winds blowing v miles per hour is given by P(v)=0.015v^3. Find the power generated by 21 mph winds.
Click here to see answer by ankor@dixie-net.com(15661)

Question 604224: At the Golden Oldies Theater, tickets for adults cost $5.50 and tickets for children cost $3.50. How many of each kind of tickets were purchased if 21 tickets were bought for $83.50?
Click here to see answer by flame8855(424)

Question 604219: In Ms. Pham's social studies class, a test is worth four times as much as homework. If a student has an average of 85% on tests and 95% on homework, what is the student's average?
Click here to see answer by flame8855(424)

Question 604216: How many liters of 24% salt solution must be mixed with 24 liters of a 40% salt solution to get a 34% salt solution?
Click here to see answer by mananth(12270)

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