1 -4 Applications and Problem Solving Mean what you say, and say what you mean!!!
Review Phrases: Operation Addition Subtraction Multiplication Division Phrase Sum of Increased by More than Total Plus Difference Decreased by Less than Minus Product of Times Of Multiply Twice Double Quotient of Divided by Half Third
Special attention 5 less than x
Practice Examples: – four more than six times a number – half the difference between a number and three – the quotient of seven and a number
Practical Formulas • A = lw (Area of a Rectangle) • P = 2 l + 2 w (Perimeter of a Rectangle) • D = rt (Distance equals rate times time) • C = np (Cost equals number of items times price per item)
Examples: a. Find the area and perimeter of a rectangle with length 4 and width w. b. You buy 6 pencils at m cents each and 4 notebooks at n cents each. How much did you spend? c. You travel 40 miles per hour for x hours. How far did you travel?
Practice • • 9 more than a number A number decreased by 11 One-third of a number The quotient of 17 and d The product of 11 and x 7 more than twice y 8 less than half of n 5 plus the quotient of a number and 8
1 -5 Translating algebra 1. Twice the sum of a number and twelve is forty. 2. When a number is multiplied by four and the result is decreased by five, the final result is nine. 3. Eight less than a number is 9. 4. The distance traveled in 4 hours was 180 miles.
Assignment: • Ditto 1. 4/1. 5
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