lve: Il can grade a set of test papers in 80 minutes. Karl can grade a set of the same number of similar test papers in 0 minutes. How long will it take Bill and Karl to grade a set of these test papers if they work together?

Q: Your boss wants you to determine how many more people can get license plates if they make the plates…

A:

Q: If it takes 30 gardeners 12 days to prune the trees in a park, how many days will it take them to do…

A: The objective of this question is to find out how many days it would take for 50 gardeners to…

Q: Five workers complete a certain electrical job in 120 hours. How long will it take three workers…

A: Five workers complete a certain electrical job in 120 hours. How long will it take three workers…

Q: based on 18000 interactions how much would get food now earn from social media interactions only if…

A: Given, A chart showing results from a recent survey with the  Get food Now customers. The first…

Q: The number of bacteria doubles each day. How many bacteria will a sample have after 13 days if it…

A: We have to find how many bacteria will a sample have after 13 days if it starts with 40 bacteria.

Q: a total of 25000is to be invested in stock and bonds. if the amount invested in bonds is four times…

A: Let's find amount invested in binds and stocks.

Q: f you read 20 minutes per day every day and end up reading 12 books in a year, each of which is of…

A: Number of books reading in a year = 12 Number of pages in a book = 200 Number of minutes read every…

Q: The number of bacteria triples each day. How many bacteria will a sample have after ten days if it…

A:

Q: This year, I am the adviser of a 42-member local chapter of the National Mathematics Honor Society.…

A: topic - permutation and combinatation

Q: A professor has 180 students in her classes at the beginning of the semester, but 18 students…

A: At the beginning of the semester the professor has 180 students in her classes. But 18 students…

Q: You work as a health inspector and must visit each of the 15 restaurants in town once each week, If…

A:

Q: Two groups are running a race. The first group is made up of 6 students and the second group is made…

A: group 1 n1 = 6x1= 521.4 secondsgroup 2n2 = 8x2 = 502.6 secondsfinal average = ?

Q: A total of 328 men and women attended a carnival. After 2/3 of the men and 1/2 of the women left the…

A:

Q: Forty men working on a construction job had completed one-third of the job in the past 15 days. The…

A:

Q: A political scientist has 12 volunteers for a political opinion survey. And political scientist Alex…

A: GivenNo.of volunteers(n)=12No.of volunteers to complete different variations of the survey(r)=2

Q: Two groups are running a race. The first group is made up of 6 students and the second group is made…

A: group 1 n1 = 6x1 = 521.4group 2n2 = 8x2 = 502.6find average (x) = ?

Q: A museum opens with a collection of 250 items. During the first week after the opening, an…

A:

Q: San is 108 year old. Jon is 24 years old. How many years will it take for San to be exactly 4 times…

A: Let x years be needed for San to be exactly 4 times as old as Jon.

Q: 50% of the students in a school were boys. 20% of the boys and 2/3 as many girls as boys took part…

A: As 50% are boys in the school so left 50% is girls which imply number of boys and number of girls…

Q: Gwen is twice as old as Arni was when Gwen was as old as Arni is now. If Gwen is 24 years old now,…

A:

Q: An apple farm yields an average of 45 bushels of apples per tree when 21 trees are planted on an…

A:

Q: itially, 10 people have an infection. The next day, every infected people infects one more person.…

A: To find the number of days it will take for 1280 people to infect.