Tutors Answer Your Questions about Miscellaneous Word Problems (FREE)
Question 1027459: The number of bacteria in a yeast culture grows at a rate which is proportional to the number present. If the population of a colony of yeast bacteria triples in one hour, find the number of bacteria which will be present at the end of 5 hours (with respect to the ordinary differential equations)
Click here to see answer by josgarithmetic(39614) |
Question 1027455: Barney had a bag of cookies he ate 35 in the first 10 minutes
he ate 1/4 of the remaining cookies during the next 10 minutes.
The next day he ate 20, but then he made 10 more. His wife Louise,
ate 15 cookies while Barney was at work. When Barney got home from
work, he ate 1/2 of the remaining cookies.
Louise ate 5 more when he went out into the backyard.
Barney then ate 15 more and found that he had only 2 left.
How many cookies
did he start with?
How many did he eat?
How much weight did he gain if every 10 cookies translates
into 1 pound?
Click here to see answer by Edwin McCravy(20054)  |
Question 1027303: Of all the people applying for a certain job, 80% are qualified and 20% are not. The personnel manager claims that she approves qualified people 75% of the time; she approves unqualified people 20% of the time. Find the probability that a person is qualified if he or she was approved by the manager.
I did a tree diagram and multiplied .80 Q x .75 = .60 . However I don't think this is right way to do it.
Click here to see answer by Fombitz(32388)  |
Question 1027302: Sheldon has a circular new train set with a radius of 2 feet. In the center of the track is the maintance shed for the track. If the engine moves from a position that is 2 feet due east of the shed for a distance of 4 feet and then breaks down, where does Sheldon send the crew to fix the train?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1027722: number 1 have 2 1/4 coconuts and 12 1/2 lima beans and need to triple it how many coconuts and lima beans are need has to be as a mixed number
number 2 have 2/5 cups lima beans and 1 1/2 cups coconut flakes and 1/2 cup pond water that make two dozens but just want to make 8 cookies how much ingredients would be need
number 3 35% mashed lima beans and 65% slice coconut if recipe made 6 one-cup servings how many cups of lima beans were used and how many cups of slice coconut were used in mixed numbers
Click here to see answer by josgarithmetic(39614) |
Question 1028062: Imagine you are planning a pizza party for the Little League team and need to feed 12 people: 8 children and 4 adults. Develop and explain a mathematical formula you could use to determine cost, and estimate how many pizzas should be ordered. Create your equation using only variables, and then substitute values for the variables to solve for your answer.
Click here to see answer by josgarithmetic(39614) |
Question 1028083: How am I supposed to writedo this
Write a formula that will help Ted determine
how much money his group will receive
for the cans.
Let's let
t = total amount they'll receive
n = number of kilograms of cans
a = amount the center pays per kilogram
Click here to see answer by fractalier(6550)  |
Question 1028175: Jules and Lea collect marbles. If they gather what they have, the number of marbles will be 4 times higher than the number of marbles Lea has. In addition, if Lea takes 21 of Jules' marbles, she will have the same number of marbles that Jules is left with.
Click here to see answer by josmiceli(19441)  |
Question 1028154: One day, Jack planted a magic beanstalk. (Let's call this day, "Day 1"). The next day (day 2), Jack notices that the beanstalk's height had increased by 1/2. On day 3, the beanstalk's height had increased by 1/3 of what it was on the previous day (day 2). One day 4, the beanstalk's height had increased by 1/4 of what it was on the previous day (day 3). Suppose the beanstalk continues to grow in this manner.
On what day will the beanstalk be 1000 times the height it was on the day Jack planted it?
Click here to see answer by Theo(13342)  |
Question 1028181: Translate this situation into a system of equation of the first degree in two clear variables: To complete a team project, Yvon spent only 3/4 of the time that Peter spent on the project. The difference between the number of hours each of them worked is 20.
Click here to see answer by Theo(13342)  |
Question 1028307: You are the manager at the town pool. You need to build a fence around the new's children's pool area. The pool is 5 feet wide by 8 feet long. You want the fence to be the same distance x from all sides of the pool, except you need to put a lifeguard chair at one end of the length, so the fence should be twice as far away on that side.
a. sketch a diagram of the situation described.
b. write a polynomial expression that represents the area enclosed by the fence.
c. IF the total area within the fence needs to be 442 square feet, how far away should the fence be from the pool on three of the sides?
d How much fencing must you buy?
Click here to see answer by mananth(16946)  |
Question 1028404: In an arabic school, English and French are offered as foreign languages. Each student must study AT LEAST one foreign language. If 41 students study English and 357 students study French, find the number of students in the school.
The answer is 997 students but I don't see how that happens.
Click here to see answer by fractalier(6550)  |
Question 1028422: the weight of a body above sea level varies inversely with the square of distance from the center of the earth if a woman weighs 138 pounds when she is at sea level 3690 miles from the center of the earth how much will she weigh when she is at the top of a mountain 4.2 miles above sea level
Click here to see answer by rothauserc(4718)  |
Question 1028551: Hi
A and B are in line with the foot of a building and on the same side of it.B is 80m from the base of the building and the angle of elevation of the top of the building from B is 35 degrees.the angle of elevation from A is 47 degrees.how far is A from the base of the building.
Thanks
Click here to see answer by rothauserc(4718)  |
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