27Solving Proportions Notes & examplesphsmath.startlogic.com/.../notes/packets/wk4/wk4d3.pdf · A1...

A1 w4d3 27 & 27 Proportions & Similar Figures.notebook

Alg 1 Warm Up Block Week 4

Solve. Show your work!

1. 2.

3. Mr. Swanson bought a package of 10 disposable razors for $6.30. He found that each razor lasted for 1 week. What was the cost per day?

Set up a proportion and solve.

4. 3.2 miles= ___ ft? 5. 720 hours = ___ days?

6. Find the missing side of the triangle using the Pythagorean Theorem

10'

6'x

7. A 25 foot ladder is leaning against a cylinder. The base of the ladder is 7 feet away from the base of the cylinder. How many feet tall is the cylinder if the ladder reaches the top?

8. Solve for y


27 Solving Proportions Notes & examples

1. 2.

3. 4.


Write a proportion to represent the situation, and solve the proportion to answer the question:

5. A band went to a recording studio and recorded 4 songs in 3 hours. How long would it take the band to record 9 songs if they record at the same rate?


notes


28 Proportions and Similar Figures Notes & examples

Similar figures have the same shape but are different sizes. You can use proportions to find missing side lengths in similar figures.

1. In the diagram, . How long is DE?


2. The sun's rays strike the building and the girl at the same angle, forming the two similar triangles shown. How tall is the building?


3. The scale of a map is 1 cm : 75 km. What is the actual distance between two towns that are 12 cm apart on the map?


Time for Skill Test 1, Quiz & Performance Task


HW p 127: 19, 25, 29, 33, 34

p 134: 9, 11, 13, 17, 18

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