Mathematics, 10.05.2021 16:20, dbrwnn
• Question
Working alone, it would take Shandra 40 minutes to sand a table. To sand the same table, also working alone, it would take Kelly 1 hour. If they work together, the situation can be modeled by the following equation, where t is the time it would take to sand the table working together.
StartFraction 1 Over 0.75 EndFraction + StartFraction 1 Over 1.25 EndFraction = StartFraction 1 Over time to complete together EndFraction
Shandra claims it will take them about 50 minutes working together, because 50 is the mean of 40 and 60. Which best describes Shandra’s claim?
• Answer chooses
Shandra’s claim is correct.
Shandra’s estimate is too high because she should have found the differences instead of the mean.
Shandra’s estimate is too high because it will take them about 24 minutes.
Shandra’s estimate is too low because it will take them about 100 minutes.
Answers: 1
Mathematics, 21.06.2019 14:00, angellv917
At the many chips cookie company they are serious about the number of chocolate chips in their cookies they claim that each cookie hasn't c chips. if their claim is true there will be 200 chips in 10 cookies
Answers: 2
Mathematics, 21.06.2019 21:30, brittanysanders
Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.
Answers: 2
• Question
Working alone, it would take Shandra 40 minutes to sand a table. To sand the same table...
Mathematics, 05.03.2021 06:30
Mathematics, 05.03.2021 06:30