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State the constants, coefficients, and terms 2. The sum of three consecutive numbers add up to 315. What are the three numbers?. Friday, August 16 th Please complete the warm up . Homework Answers. Quiz Review. Inequalities. < = less than > = more than ≤ = less than or equal to
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State the constants, coefficients, and terms 2. The sum of three consecutive numbers add up to 315. What are the three numbers? Friday, August 16th Please complete the warm up
Inequalities < = less than > = more than ≤ = less than or equal to ≥ = great than or equal to
Examples • The difference of five and a number is less than 10
Age Problems Devon is 10 years older than twice Sammy’s age. If Sammy is 12, how old is Devon? Equation: D=10+2x D= 10 + 2(12) D=10 + 24 D=34
Consecutive Numbers • The sum of 3 consecutive even numbers add up to 1002. Find the three numbers. X + x + 2 + x + 4 = 1002 3x + 6 = 1002 3x = 996 X = 332 1st 332 2nd 334 3rd 336
Area and Perimeter The height of a rectangle is three centimeters more than twice its length. If the perimeter of the rectangle is 60 cm, what is its area? 1. Reasoning: Label the side lengths x and 2x + 3. 2. Add up the sides & solve: 2x + 4x + 6 = 60 ; x = 9 3. Substitute to find height. (2)(9) + 3 = 21. 4. Find the area of the rectangle. 5. Area is 189 cm squared.
Interpreting Expressions Suppose A and B are the populations of two different cities. a.