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Answer:Learn to solve word problems
This is a collection of word problem solvers that solve your problems and help you understand the solutions. All problems are customizable (meaning that you can change all parameters). We try to have a comprehensive collection of school algebra problems. The good news is that the steps to solve word problems are always the same. The bad news is that you may have to think pretty hard.
Here's a run down on what you need to do for a typical age word problem, with a little example.
The older brother Bob is two year older than his little sister Alice. Taken together, the sum of their ages is 8.
Read the problem carefully.
Get rid of clutter
Identify key variables (unknowns).
Eliminate unneeded variables.
Use the text of the problem to write equations.
Solve the equation.
Find the remaining variables.
The older brother Bob is two year older than his little sister Alice. Taken together, the sum of their ages is 8.
Bob is two years older than Alice. Bob's age plus Alice's age = 8.
Bob's age B and Alice's age A
Get rid of B. Bob is 2 years older than Alice, so you can use A+2 instead of B
Sum of their ages is 8. A + (A+2) = 8.
Solve the equation using my Universal math simplifier and solver (click here!).
With the link above, you just found Alice's Age A=3. Bob's age is two years older, which is 5.
Introduction
How to work word problems
Interpreting phrases like "twice as much", "Janie's age 3 years from now", etc
Read this lesson on translating English to Algebreze
Identifying variables amidst verbiage
What to do with unit labels (feet, hours etc).
1. Numbers
Relationships among numbers
Find numbers given their sum and other relationships
Consecutive: sums of consecutive numbers lesson and sum of consecutive numbers solver. Consecutive number multiples.
Real world number problems
Lesson on Word problems with digits (sum, difference of digits)
2. Time and Travel
Travel Related Problems
Trains (and other objects) moving towards each other or in the same direction; meeting, catching up
Going and coming back
Going against (and with) wind and current
3. Mixtures
Mixing Mixtures
Problems related to mixing mixtures of various concentrations.
4. Quadratics
Learn to solve them
Areas...
Learn to not use bad roots
5. Linear Problems
Problems reducible to linear equations
2 apples and 3 oranges cost , 1 apple and 2 oranges cost .
Customizable!
6. Age Problems
Typical age-related problems
Combined age
Relation of ages now and some time ago
7. Finance Problems
Typical finance-related problems
Interest income
Total amounts and partial investments
8. Geometry Problems
Triangles, rectangles, spheres etc
9. Miscellaneous Problems
More stuff
Realtors, etc
Total amounts and partial investments
More Coming
We'll have YOUR problems listed!
Write me and tell me what exactly is the word problem that you'd like to have solved.
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