This problem is actually under the subject of Mathematics, particularly, Algebra. For work problems, you can use a convenient technique of dimensional analysis. This is done by multiplying units of measurement, then cancelling out like terms in order to come up with the units of the final answer. For this problem, the total amount of liters is 2,100. So, the equation would be
Volume of Kelly's family + Volume of Stewart's family = 2,100
However, we are only given the rates for each family in liters per hour. To come up with the final answer with a unit of measurement in Liters, we must multiple the rate of L/hour with the individual time. Let x be the time Kelly's sprinkler was used, and y for Stewart's family.
(20 L/h)(x hours) + (40 L/h)(y hours) = 2,100
This is the first equation. The second equation is the total time.
x + y = 65 hours
Rearranging the equation, y = 65 - x. Let's substitute this to the first equation.
20x + 40(65-x) = 2,100
Solving for x, then substituting it to the second equation to obtain y,
x = 25 hours
25 + y = 65
y = 40 hours.
Thus, Kelly's sprinkler was used for 25 hours, while Stewart's sprinkler was used for 40 hours.
Answer:
B. $57
Explanation:
The computation of the opportunity cost of the theater shown below:
= Earning per hour × number of hours + cost of the theater ticket
= $9 × 3 hours + $30
= $27 + $30
= $57
To find the opportunity cost we considered the total earnings and the cost of the theater tickets so that the accurate cost of the theater could come.
Answer:
The investment of Joan Osborne is expected to produce a rate of return less that 10%.
Explanation:
This implies that the expected rate of return on the investment will the minimum rate of return.
An investment with a positive NPV would produce produce an expected rate of return higher than the minimum rate of return and vice versa.
The investment of Joan Osborne is expected to produce a rate of return less that 10%.
The type of marketing channel that this represents is direct.
This means that there are no intermediaries between the seller and the consumer. This local store buys the goods, and then sells it to the buyers itself - there is no third-party retailer or dealer which is going to do that for the local store - that would be indirect marketing, which is something this is not.
Surface area: 384.9ft (squared)
Volume: 538.8ft
