Friday, August 16th Please complete the warm up

1. State the constants, coefficients, and terms

2. The sum of three consecutive numbers add up to 315. What are the three numbers?

735 2 yx

HOMEWORK ANSWERS

QUIZ REVIEW

INEQUALITIES

< = less than > = more than ≤ = less than or equal to≥ = great than or equal to

EXAMPLES 1. 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.

1st 3322nd 3343rd 336

X + x + 2 + x + 4 = 1002

3x + 6 = 1002

3x = 996

X = 332

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.

AREA AND PERIMETER

INTERPRETING EXPRESSIONS

Suppose A and B are the populations of two different cities.

a.