1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alik [6]
3 years ago
5

He kelly family and the stewart family each used their sprinklers last summer. the water output rate for the kelly family's spri

nkler was 20l per hour. the water output rate for the stewart family's sprinkler was 40l per hour. the families used their sprinklers for a combined total of 65 hours, resulting in a total water output of 2100l . how long was each sprinkler used?
Business
1 answer:
tigry1 [53]3 years ago
8 0
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.
You might be interested in
. Costs that the manager has the power to determine or at least strongly influence are called: Question 5 options: A. Uncontroll
GalinKa [24]

Answer:

B. Controllable costs

Explanation:

There are some costs that are expended by a company during the cost of carrying out their business operations. These costs such as labor costs and marketing budgets are incurred because the company has full authority over them. They are costs that can be altered in short term based on a business decision.

In other words, controllable costs are those costs or expenses that can be influenced by those who are saddled with the responsibilities of incurring them.

5 0
3 years ago
Tara has started a new job and has been assigned to work on a team. She is anxious about getting along with her new team members
kap26 [50]
B. Avoid gossip
Getting along with team means being yourself and not gossiping with others.

C is not the answer because you want to make sure you are aware of complaints.
D is not the answer because when you give gifts, sometimes people can take advantage of you because they know you want to get along with them
A is not the answer because to get along and work together you have to share ideas
6 0
3 years ago
Read 2 more answers
Linda is starting a new cosmetic and clothing business and would like to make a net profit of approximately 10% after paying all
stepan [7]
Is there more to this question??? What do you need to know??
7 0
2 years ago
Production used 2.5 labor hours per finished unit, and the company actually paid $21 per hour, totaling $52.50 per unit of finis
jeka94

Answer:

Direct labor rate variance= (Standard Rate - Actual Rate)*Actual hours

Explanation:

Giving the following information:

The production used 2.5 labor hours per finished unit, and the company paid $21 per hour, totaling $52.50 per unit of finished product.

<u>We weren't provided with enough information to solve the problem. We need estimated production hours and rates. But, I can leave the formula to solve it.</u>

To calculate direct labor rate variance, we need to use the following formula:

Direct labor rate variance= (Standard Rate - Actual Rate)*Actual Hours

3 0
2 years ago
Which pharmaceuticals company has decided to expand its vaccine business in the United Kingdom with an investment of £240 millio
Volgvan

Answer:

Which pharmaceuticals company has decided to expand its vaccine business in the United Kingdom with an investment of £240 million?

answer= B.) Serum Institute of India

4 0
1 year ago
Read 2 more answers
Other questions:
  • Ray Jene earns $900 a week at a Publix supermarket. Ray's payroll deductions are 28%. What is Ray's take-home pay?
    13·1 answer
  • A fundamental difference between regular marketing and global marketing is
    14·1 answer
  • Which sentence or phrase in the passage suggests an action of integrity? On Monday, Mr. Blackwell, the creative head of an adver
    8·2 answers
  • Which organization was one of the five services that merged to form the current Coast Guard?
    5·1 answer
  • For an investment to be classified as a current​ asset, A. the investment must be easily convertible to cash. B. the investor mu
    5·1 answer
  • 3. If the interest rate at the bank for a savings account is 0.03%, how much money would you need to leave in the account for on
    6·1 answer
  • The project represented by this resource load chart has a maximum limit of 6 units of resource activity in any day. The first ac
    13·1 answer
  • A government was awarded a grant from another government. The $8,000,000 grant is restricted to use for construction of a facili
    7·1 answer
  • You’re trying to save to buy a new $180,000 Ferrari. You have $29,000 today that can be invested at your bank. The bank pays 3.6
    8·1 answer
  • A hedge fund returns on average 26% per year with a standard deviation of 12%. Using the empirical rule, approximate the probabi
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!