| Subject | Date Asked | Expert |
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| math | 11/12/2007 | Soroban |
Q: the product of two numbers is 32 and rheir quotient is 8. find the numbers.
A: Princess Nikki! There are a number of ways to solve this one. I'll show you one of them. If ...
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| math | 11/11/2007 | Brandon |
Q: suppose 5 1/4 pounds of beef is $84 how much is 3lbs ANSWER: I would be glad to help! First you ...
A: I would be glad to help! First you have to find out how much 1/5 of 100$ is. To do this you need ...
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| Algebra II word problem | 11/11/2007 | Soroban |
Q: A chemist needs 150 ml of a 55% solution but only has 51% and 66% solutions to mix. How much of ...
A: Marco! Ah, "mixture" problems . . . I have an approach for them. Let's say that the solution is ...
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| math | 11/11/2007 | Brandon |
Q: suppose 5 1/4 pounds of beef is $84 how much is 3lbs ANSWER: I would be glad to help! First you ...
A: If you take the total price of 84$ and divide by how many pounds that it takes to get that amount ...
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| Inequalities | 11/9/2007 | Soroban |
Q: The mean distance of the earth from the sun is 93 million miles. Th distance varies by 1.6 million ...
A: Veronica! This is not a difficult concept, but it's too bad they used astronomical distances ...
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| Help Me please or I'll fail AP Math! | 11/8/2007 | Brandon |
Q: Lisa has money in her purse Quarters, Nickles, and Dimes, She has Twice as many quarters as nickles, ...
A: I would be glad to help! ***************************************************** I HAVE WORKED THIS ...
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| algebra | 11/8/2007 | Brandon |
Q: a picture frame measures 12cm by 20cm. 84cm^2 of picture shows inside the frame. find the width of ...
A: I would be glad to help! If we let x be the width of the frame then: 12 - 2x = one side of the ...
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| Apples for Sale | 11/6/2007 | Brandon |
Q: Jami has two types of apples to sell today at the family's road side stand. Her mother told her to ...
A: I would be glad to help! First we need to find out how much money she would make from selling all ...
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| Apples for Sale | 11/6/2007 | Soroban |
Q: Jami has two types of apples to sell today at the family's road side stand. Her mother told her to ...
A: Stephanie! This problem is the basis for a great "trick question". (I'll tell you about at the ...
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| Help | 11/4/2007 | Soroban |
Q: Austin is planning on purchasing a cellular phone. He contacts two cellular companies, Funny Phones ...
A: Joe! Let x = number of minutes Austin uses a phone service per month. Funny Phones charges a flat ...
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| Word Problems | 11/3/2007 | Soroban |
Q: A test consists of short answer problems and essay problems. Short answer problems are worth 6 ...
A: Joe! This is a "Linear Programming" problem. Are you familiar with them? Let S = number of ...
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| How do you find the asymptotes? | 11/1/2007 | Soroban |
Q: How do you find the asymptotes of a function? My question is below, the "5" by the "log" is ...
A: Cara! A vertical asymptote occurs when the denominator equals zero. Well, that's the general ...
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| Quadratic equation problem | 11/1/2007 | Brandon |
Q: We're studying quadratic equations so i'm pretty sure i have to use the information below to answer ...
A: I would be glad to help! Lets let x = the number of characters in one row/column for the first ...
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| photo word problem | 10/31/2007 | Soroban |
Q: A photo is 3 inches longer than it is wide. A 2-inch border is placed around the photo making the ...
A: Cara! Let x = width of the photo. Then x + 3 = length of the photo. You have to visualize this (or ...
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| Consecutive Integer word problem. | 10/31/2007 | Soroban |
Q: Okay i need to set up a quadratic equation to answer the following. Three consecutive even integers ...
A: Cara! Three consecutive even integers . . . Even numbers "go up by two." Let x = first even ...
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| distance, velocity, & acceleration | 10/31/2007 | Brandon |
Q: Batman's bat mobile is travelling at 80m/s when it comes to a screeching halt in 7 seconds because ...
A: I would love to help! The formula for acceleration is: a = (change in velocity)/(elapsed time) ...
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| Another quadratic equation word problem | 10/30/2007 | Soroban |
Q: A designer attempts to arrange the characters of his artwork in the form of a square grid with equal ...
A: Cara! I had to use two variables for this one. (But we get rid of one of them quickly.) Let N = ...
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| Using an quadratic equation please help me solve. | 10/30/2007 | Soroban |
Q: The Hudson River flows at a rate of 3mph. A patrol boat travels 60 miles upriver, and returns ina ...
A: Cara! This one doesn't have a neat answer either . . . Let x = speed of the boat in still water. ...
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| Setting up the quadratic equation for this problem | 10/30/2007 | Soroban |
Q: Steve traveled 200 miles at a certain speed. Had he gone 10mph faster, the trip would have taken 1 ...
A: Cara! We know: [Distance] = [Speed] [Time] We will use: [Time] = [Distance] / [Speed] ...
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| Word problem | 10/29/2007 | Soroban |
Q: A rectangular garden measure 5m x 4m. Its area is to be tripled by extending each dimension by the ...
A: Anna! Warning: This one has an UGLY answer . . . The original garden is 5m 4m. It has an ...
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| word problem | 10/29/2007 | Soroban |
Q: Maurice drove 400km from Edmonton to Battleford in one hour less time than it took Martin to drive ...
A: Anna! We have: [Distance] = [Speed] [Time] and its variation: [Time] = [Distance] / ...
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| Algebra | 10/29/2007 | Soroban |
Q: A rectangular garden has a perimeter of 84 feet. Fencing across the length costs $3 per foot and ...
A: Bert! Is there a typo? I'm getting negative ansers . . . (a) Let L = length, W = width. The ...
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| marble word problem | 10/28/2007 | Soroban |
Q: You have 3 bags. One contains blue marbles. One contains green marbles. One contains both blue and ...
A: Teri! This is a classic puzzle. The secret is that each bag is labeled INCORRECTLY. The bags are ...
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| Word Problem | 10/27/2007 | Soroban |
Q: Can you help me with this word problem? Members of the Math Club are making posters for a bake ...
A: Janine! There are always tricky. Here's the way I handle them. 2 members, 4 posters 30 ...
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| WORD PROBLEM | 10/25/2007 | Soroban |
Q: Reservoir: One reservoir has four taps. Using the first takes two days to saturate the reservoir, ...
A: Juanita! Here's how I handle "work problems". Tap "A" takes 2 days. In one day, it does 1/2 ...
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| PROBLEM SOLVING | 10/24/2007 | Brandon |
Q: I'm sorry, I believe I left a measurement out of the problem. Here is the problem again. Hello, I ...
A: I would be glad to help! Lets rewrite what we know: size of chart = 6' x 6' (72" x 72") size of ...
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| Problem Solving | 10/24/2007 | Brandon |
Q: I was hoping you can help me solve the following word problem. An instructor has learned that for ...
A: I would be glad to help! Lets first look at our ratio: 2 to 1 This means that for every 2 students ...
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| math | 10/24/2007 | Soroban |
Q: A buffalo is grazing in a field in which there is a square shed with four poles with a side of ...
A: Koneru! This is tricky to explain. I hope you can follow my diagram. Draw a square. "A" in the ...
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| word problem | 10/23/2007 | Soroban |
Q: The instructor of an introductory computer course wants to make a wall chart of a computer desktop ...
A: Misty! 1) The wall chart is 72" 72". The PC screen is 15" 15". The wall chart is: 72/15 = 4.8 ...
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| Algebra | 10/23/2007 | Soroban |
Q: If the area of a square is 1250 sq. ft, what is the length of 1 side?
A: Beth! We're expected to know the formula for the area of a square. If the side of the square is X, ...
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| Algebra 2 Word problem | 10/22/2007 | Soroban |
Q: I'm having a hard time figuring this challenge question out. "Using three different weights, you ...
A: Olivia! Unless you're familiar with some mathematical trivia, this problem is extremely ...
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| Rate | 10/22/2007 | Brandon |
Q: Martina leaves home at 9 am bicycling at a rate of 24 mi/h. Two hours later, John leaves, driving ...
A: I would be glad to help! We are going to use the formula: Distance = Rate x Time Martina leaves at ...
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| alg 2 | 10/22/2007 | Soroban |
Q: two cars leave town traveling in opposite directions. one travels at 80 km/h and the other at 96 ...
A: Sarah! We're expected to know: [Distance] = [Speed] ~ [Time] One car travels at 80 kph for x ...
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| distance word problems | 10/21/2007 | Soroban |
Q: Can you help me with this problem: A train left Omaha at 9a.m. travelling at 50 mph. At 1 p.m. a ...
A: Ellen! Here's the way I like to solve "catch up" problems. Draw a horizontal line. The left end is ...
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| Algebra Word Problems | 10/19/2007 | Soroban |
Q: Worth, Missouri, is 24 miles more north of Independence, Missouri, than it is west of Putnam, ...
A: Lauren! An interesting problem . . . It requires a good diagram. Draw a horizontal line. The ...
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| 3rd grade math word probelm | 10/18/2007 | Brandon |
Q: Michael has $3 more than John.Together they have $27.How much money does each boy have? Thanks in ...
A: I would be glad to help!! Let m = the money Michael has, and j = the money John has. So due to the ...
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| algebra 2 word problem | 10/16/2007 | Soroban |
Q: I need help solving this problem by using system of equations. A puppy pen is 1 foot longer than ...
A: Joey! Let the original rectangle has length L and width W. Its area is: LW (square feet) The ...
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| word problems | 10/16/2007 | Brandon |
Q: show mw how to solve this problem please Flying with the wind a plane flew 1800 miles in 3 hours. ...
A: I would be glad to help! We need to use our distance formula. It states: D = rt Where D = ...
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| problem | 10/16/2007 | Soroban |
Q: Upon completion of his degree, Michael is hired as a technician at the rate of $900 every two weeks ...
A: Misty! This is straight arithmetic . . . His expenses total $1,445 per month. His income is: 2 ...
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| World Population | 10/15/2007 | Brandon |
Q: If the world population of 5.5 billion people were gathered together in one spot, how large an area ...
A: I would love to help! First we would want to find the area on the ground that 1 person occupies. ...
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