Jack is an aspiring freshman at Ulern University. He realizes that ”all work and no play make Jack a dull boy.” As a result, Jack wants to apportion his available time of about 10 hours a day between work and play. He estimates that play is twice as much fun as work. He also wants

For his classes, Professor Wright gives three types of quizzes, objective, recall, and recall-plus. To keep his students on their toes, he has decided to give at least 20 quizzes next quarter. The three types, objective, recall, and recall-plus quizzes, require the students to spend, respectively, 10 minutes, 30 minutes, and 60 minutes for preparation, and Professor Wright would like them to spend at least 12 hours(720 minutes) preparing for these quizzes above and beyond the normal study time. An average score on an objective quiz is 5, on a recall type 6, and on a recall-plus 7, and Dr. Wright would like the students to score at least 130 points on all quizzes. It takes the professor one minute to grade an objective quiz, 2 minutes to grade a recall type quiz, and 3 minutes to grade a recall-plus quiz. How many of each type should he give in order to minimize his grading time?

An investor has $5000 to invest in three different accounts. One is low-risk,one is a medium-risk and the third is a high-risk investment. The low-risk account is expected to pay 5.2% interest, the medium-risk investment is expected to pay 6.7% interest and the high-risk investment is espected to pay10.3% interest. Due to her age, the investor is willing to invest twice as much money in the high-risk account as in the low-risk investment. How much money should be invested in each of the accounts to anticipate a return of 8% on the total investment.

Three friends are trying to predict who will make more money at work tomorrow. John works construction: he will make $250 tomorrow unless it rains, in which case he will make $0. Sara works in a restaurant: she will earn $100 if it is sunny, $200 if it is rainy, and $250 if the weather is average. Chris works in a warehouse, and he earns a flat rate of $200 per day, regardless of weather conditions. Suppose there is a 20% chance that tomorrow will be sunny, and 50% chance that the weather will be average, and a 30% chance of rain.    Determine tomorrow’s expected earnings for each of these 3 friends. Compute the standard deviation for Sara’s earnings.  Handwrite the solution

Your school's basketball team is organizing a bus trip to a Toronto Raptors game at the Air Canada Centre. The cost to rent the bus, which can carry up to 52 people, is $380 and the cost of tickets for a group of 20 or more is $29.50 per person. In addition, the team wants to make a $250 profit from this event to help defray the costs of a future tournament. However, the school administration requires that the cost of the trip per person not exceed $45. Is this possible? If so, what is the minimum number of people that must participate in the activity?

both sheets are for the same problem.

Jackson Farms has allotted a certain amount of land for cultivating soybeans, corn, and wheat. Cultivating 1 acre of soybeans requires 2 labor-hours, and cultivating 1 acre of corn or wheat requires 6 labor-hours. The cost of seeds for 1 acre of soybeans is $12, the cost for 1 acre of corn is $20, and the cost for 1 acre of wheat is $8. If all resources are to be used, how many acres of each crop should be cultivated if the following hold? (a) 1100 acres of land are allotted, 4600 labor-hours are available, and $14,400 is available for seeds. acres of soybeans acres of corn acres of wheat (b) 1300 acres of land are allotted, 5400 labor-hours are available, and $17,600 is available for seeds. acres of soybeans acres of corn acres of wheat