Math Word Problems Demystified - A Self Teaching Guide
xþxþx 6 ¼ 24 3 x 6 ¼ 24 3 x 6 þ 6 ¼ 24 þ 6 3 x¼ 30 31 x 31 ¼ 30 3 x¼ 10 x 6 ¼ 4 The lengths of the sides are 10 inches, 10 i ...
180 ¼xþ 2 xþ 2 x 20 180 ¼ 5 x 20 180 þ 20 ¼ 5 x 20 þ 20 200 ¼ 5 x 200 5 ¼ 51 x 51 408 ¼x 2 x¼ 2 ð 40 Þ¼ 808 2 x 20 ¼ 2 ð 40 ...
xþ 2 xþ 30 þxþ 2 xþ 30 ¼ 180 6 xþ 60 ¼ 180 6 xþ 60 60 ¼ 180 60 6 x¼ 120 61 x 61 ¼ 120 6 x¼ 208 2 xþ 30 ¼ 2 ð 20 Þþ 30 ¼ 708 ...
A¼ 1 2 bh 30 ¼ 1 2 ðxþ 7 Þx 30 2 ¼ 21 1 1 21 ðxþ 7 Þx 60 ¼x^2 þ 7 x 60 60 ¼x^2 þ 7 x 60 0 ¼x^2 þ 7 x 60 0 ¼ðxþ 12 Þðx 5 ...
10 : Letx¼the measure of the radius A¼ 3 : 14 r^2 379 : 94 ¼ 3 : 14 x^2 379 : 94 3 : 14 ¼ 3 : 141 x^2 3 : 141 121 ¼x^2 ffiffiffi ...
Quiz 5 Five hats and three scarves cost $99, while three hats and five scarves cost $85. Find the cost of one hat. (a) $8 (b) $ ...
A person has $9000, part of which he invested at 3% interest and the rest of which he invested at 5%. If the yearly interest fr ...
If the base of a triangle is 4 inches longer than its height and the area of the triangle is 48 square feet, find the length of ...
LESSON 21 Solving Word Problems Using Other Strategies In addition to being able to solve problems in prealgebra, algebra, and g ...
Draw a picture. Find a pattern. Solve a simpler problem. Work backwards. Make an Organized List When you use this strategy, yo ...
4 6 $1.60 5 5 $1.75 6 4 $1.90 Hence, 6 quarters and 4 dimes are needed to get $1.90. EVALUATION: Six quarters plus 4 dimes makes ...
Guess and Test This strategy is similar to the previous one except you do not need to make a list. You simply take an educated g ...
SOLUTION: GOAL: You are being asked to find what digitsxandwrepresent. STRATEGY: Use guess and test. IMPLEMENTATION: Guess a few ...
Since there are seven intervals, the distance between the first and last one is 7 2 ¼14 feet. EVALUATION: The figure shows that ...
Hence there are 8 different possibilities: HHH THH HHT THT HTH TTH HTT TTT EVALUATION:Since there are two ways each coin can fal ...
Notice the relationship between the day and the total amount earned: 1^2 ¼1, 22 ¼4, 3^2 ¼9, 4^2 ¼16, 5^2 ¼25. Hence for 30 days’ ...
EXAMPLE:If there are 8 people at a meeting and each person shakes every other person’s hand once, how many handshakes occurred? ...
EXAMPLE:Tina spent $1.00 for parking and one-half of the remainder of her money in a department store. Then she spent $3.00 for ...
Each letter stands for a digit. All identical letters represent the same digit. Find the solution. PQ þ Q QP The sum of the d ...
Strategy: Guess and test. 89þ 9 ¼98. Strategy: Guess and test. 32 9 ¼23. Strategy: Make an organized list. 6 twenty-five cent ...
«
7
8
9
10
11
12
13
14
15
16
»
Free download pdf