Bell WorkSolve each equation.

1) 8y + 3 = 5y + 15

2) 4(x + 3) – 14 = 7(x -1)

3) 2.8w – 3 = 5w – 0.8

4) 5(x + 3) + 2 = 5x + 17

5) Solve:

6(4 + a) – 3 = 4(a – 3) + 2a

a) – 1 b) 0

c) no solution d) all numbers

QuizComplete on a separate sheet of paper and turn into Mrs. Campbell.

1) ½ x + 5 = 7

2) 3x – 7 + 32

3) 2/3x – ¼ = 2/4

4) 12/4 = x

5) x – (-17) = 164

A blueprint for a house states that 2.5 inches equals 10 feet. If the length of a wall is 12 feet, how long is the wall in the blueprint?

Section 3 – 6Ratios and Proportionspage 155

The student will solve problems using ratios and proportions. They will also determine if ratios are proportionate.

Ratio comparison of two numbers using division.

Examples:

Proportions Two equivalent ratios.

Cross products are equal Reduce to same ratio.

Determine whether the ratios 7/8 and 49/56 form a proportion.

Determine whether each pair of ratios form a proportion.

0.25 1.25 0.6 2

4 165 20

The gear on a bicycle is 8:5. This means that for every 8 minutes of the pedals, the wheel turns 5 times. Suppose the bicycle wheel turns about 2435 times during a trip. How many times would you have to crank the pedals during the trip?

Open book to page 158, number 4.A. Yes

B. No

[Default][MC Any][MC All]

Number 5.A. Yes

B. No

[Default][MC Any][MC All]

Number 6.A. Yes

B. No

[Default][MC Any][MC All]

Number 7.A. x =8

B. x = 9

C. x = 10

D. x = 11[Default][MC Any][MC All]

Number 9.A. n = 4

B. n = 4.22

C. n = 4.42

D. n = 4.62[Default][MC Any][MC All]

Number 10.