Word Problems Linear

LINEAR EQUATION

Translating word statements into algebraic expressions

• Eleven multiplied by the quantity x plus five• Two thirds of a number is 20• The product of two numbers is 85 and one number is 5• The product of 3 and b added to five times x decreased by 2

times y• Twice a number y diminished by 4 is equal to thirty one• The average of three numbers a, b and c• The cube of m divided by the square of m equals the square of

m divided by m• Three times a certain number (n) is eight more than a second

number (s)• Two more than thrice a number

• The sum of a number and 5 diminished by 6

• Represent two consecutive numbers

• NUMBER PROBLEMS– The sum of three integers is 27. The

second integer is two less than twice the first integer, and the third integer is 5 greater than three times the first. Find the numbers.

– The total of two integers is 43. Double the bigger integer exceeds three times the smaller integer by sixteen. What are the integers?

PROBLEMS INVOLVING SIMPLE LINEAR EQUATIONS


• AGE PROBLEMS– Mr. Avila is four times as old as his son.

In 16 years he will be only twice as old. What are their ages now?

– Five years ago Mike was twice as old as Berto. The sum of their ages six years hence will be forty years. What are their present ages?


• MIXTURE PROBLEM

– How many liters of 70% methyl solution should be added to 200 liters of a 20% methyl solution to obtain a 35% methyl solution?

– How many grams of pure gold must be added to 100 gm, 50% pure, to make a mixture, which is 75 pure?

• INVESTMENT PROBLEMS

– A businessman invested P16,000, part at 9% and the rest at 4%. His total interest from both investments was P990. How much did he invest at each rate?

– A man invested P10,000 part of it at 4% and the rest at 5% interest. If the total income from each of these investments amounted to P480.00, how much was invested at each rate?



• MOTION PROBLEM– Two buses leave at the same time from two

terminals 792 kms apart and meet in 9 hours. One bus travels 8 kph faster than the other. How far did each bus travel?

– A car leaves town going south at 50 mph. One hour later another car leaves on the same road travelling at 60 mph. How far from town will the second car overtake the first?

• MEASUREMENT PROBLEM

– A rectangle is 5 meters longer than its width. If the length is shortened by two meters and the width is increased by one meter, the area will be the same. Find the length and the width.

– The length of a rectangle is 13 inches greater than its width. Its perimeter is 8 ft. Find its dimensions.


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Word Problems Linear