Math Word Problems Demystified - A Self Teaching Guide
x¼4 (one’s and ten’s digit) x 3 ¼ 4 3 ¼1 (hundred’s digit) The number is 144. Letx¼the ten’s digit andx 5 ¼the one’s digit; ...
11 LESSON Solving Coin Problems Suppose you have some coins in your wallet. In order to determine the amount of money you have, ...
In order to avoid decimals, it is easier to work with cents rather than dollars. You can change dollars to cents by multiplying ...
EXAMPLE:A person has 3 times as many dimes as he has nickels and 5 more pennies than nickels. If the total amount of these coins ...
EXAMPLE:A person bought ten greeting cards consisting of birthday cards costing $1.50 each and anniversary cards costing $2.00 e ...
Try These If a person has three times as many quarters as dimes and the total amount of money is $5.95, find the number of quar ...
SOLUTIONS: Letx¼the number of dimes and 3x¼the number of quarters; then the value of the dimes is 10xand the value of the quart ...
30 xþ 150 ¼ 300 30 xþ 150 150 ¼ 300 150 30 x¼ 150 301 x 301 ¼ 150 30 x¼5 nickels xþ 6 ¼ 5 þ 6 ¼11 quarters Letx¼the number ...
26 x¼ 182 261 x 261 ¼ 182 26 x¼7 pennies 2 x¼ 2 7 ¼14 dimes xþ 3 ¼ 7 þ 3 ¼10 nickels Letx¼the number of half dollars, 3x¼the ...
14 xþ 276 276 ¼ 374 276 14 x¼ 98 141 x 141 ¼ 98 14 x¼ 737 c stamps 12 x¼ 12 7 ¼ 523 c stamps Letx¼the number of sandwich ...
70 x¼ 490 701 x 701 ¼ 490 70 x¼7 reams of college-ruled paper 9 x¼ 9 7 ¼2 reams of wide-ruled paper Letx¼the numb ...
Quiz 3 If one number is 7 times another number and the sum of the numbers is 32, the smaller number is (a) 2 (b) 4 (c) 3 (d) 5 ...
If the sum of two even consecutive numbers is 166, the smaller number is (a) 81 (b) 86 (c) 80 (d) 82 The sum of the digits of a ...
A person has 20 bills consisting of $1 bills and $2 bills. If the total amount of money the person has is $35, find the number ...
LESSON 12 Solving Age Problems When you encounter an age problem, you will often see that the problem gives you information abou ...
Likewise, if the problem gives you some information about the ages, say, 5 years ago, you can represent their past ages as Letx ...
EVALUATION: In 24 years, the daughter’s age is 3þ 24 ¼27 and the mother’s age is 30þ 24 ¼54. Since 54¼ 2 27, the mother will be ...
STRATEGY: Letx¼Mary’s age andxþ 6 ¼Jan’s age. Then the sum of their ages isxþxþ 6 ¼32. IMPLEMENTATION: Solve the equation: xþxþ ...
IMPLEMENTATION: Solve the equation: 2 ð 12 þxÞ¼ 34 þx 24 þ 2 x¼ 34 þx 24 þ 2 xx¼ 34 þxx 24 þx¼ 34 24 24 þx¼ 34 24 x¼ 10 He ...
Will is 4 years older than Phil. Three years from now, Will will be twice as old as Phil was last year. Find their present ages ...
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