SWeek 1-2 ConterSMath EnrichmentSUsing Unit RatesS Soling PrsblemS035459838/mydocumentSubmit AssicLESSON 16Using Unit Rates to Find Equivalent Ratios> Solve each problem. Show your work.1 Rachel mows 5 lawns in 8 hours. At this rate, how many lawns can she mow in 40 hours?2 A contractor charges $1.200 for 100 square feet of roofing installed. At this rate, how much doecost to have 1,100 square feet installed?

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Description: SWeek 1-2 ConterSMath EnrichmentSUsing Unit RatesS Soling PrsblemS035459838/mydocumentSubmit AssicLESSON 16Using Unit Rates to Find Equivalent Ratios> Solve each problem. Show your work.1 Rachel mows 5 lawns in 8 hours. At this rate, how many lawns

Rachel mows 5 laws in 8 hours. Ratio = Number of lawns /Total hours =5/8 =5:8

Math

Algebra

1 Rachel mows 5 lawns in 8 hours. At this rate, how many lawns can she mow in 40 hours? 2 A contractor charges $1,200 for 100 square feet of roofing installed. At this rate, how much doe cost to have 1,100 square feet installed?

1 Rachel mows 5 lawns in 8 hours. At this rate, how many lawns can she mow in 40 hours? 2 A contractor charges $1,200 for 100 square feet of roofing installed. At this rate, how much doe cost to have 1,100 square feet installed?

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

ChapterP: Prerequisites

SectionP.9: Modeling With Equations

Problem 52E: Mixture Problem A health clinic uses a solution of bleach to sterilize petri dishes in which...

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Mixture Problem A health clinic uses a solution of bleach to sterilize petri dishes in which cultures e grown. The sterilization tank contains 100 gal of a solution of 2% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 5% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?
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Aerobic Power Aerobic power can be thought of as the maximum oxygen consumption attainable per kilogram of body mass. There are a number of ways in which physical educators estimate this. One method uses the Queens College Step Test. In this test, males step up and down a 16-inch bleacher step 24 times per minute for 3 minutes, and females do 22 steps per minute for 3 minutes. Five seconds after the exercise is complete, a 15-second pulse count P is taken. Maximum oxygen consumption M, in milliliters per kilogram, for males is approximated by M=111.3-1.68P. For females, the recommended formula is F=65.81-0.74P. a. Calculate the maximum oxygen consumption for both a male and a female who show a 15-second pulse count of 40. b. What 15-second pulse count for a male will indicate a maximum oxygen consumption of 35.7 milliliters per kilogram? c. What 15-second pulse count will indicate the same maximum oxygen consumption for a male as for a female? d. What maximum oxygen consumption is associated with your answer in part c?