4. Solve the following proportions. b. a. 12 4 %3D 30 16 14

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.8: Joint And Combined Variation
Problem 11P
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4. Solve the following proportions.
a.
12
30
16
14
Transcribed Image Text:4. Solve the following proportions. a. 12 30 16 14
3. Sandra was hired as a part-time office assistant. The amount of money she
earns in a week is proportional to the number of hours she works during the
week. She earned $167 for working 20 hours during her first week on the job.
During the second week she worked 35 hours and earned $292.25.
a. Identify the constant of proportionality in this situation.
b. Sandra worked for 28 hours during the third week. How much money did she
earn?
c. Create a graph showing how much Sandra will earn for working 5, 10, 15,
20, and 25 hours a week.
Transcribed Image Text:3. Sandra was hired as a part-time office assistant. The amount of money she earns in a week is proportional to the number of hours she works during the week. She earned $167 for working 20 hours during her first week on the job. During the second week she worked 35 hours and earned $292.25. a. Identify the constant of proportionality in this situation. b. Sandra worked for 28 hours during the third week. How much money did she earn? c. Create a graph showing how much Sandra will earn for working 5, 10, 15, 20, and 25 hours a week.
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