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
lara [203]
4 years ago
7

A group of friends decided to divide the $800 cost of a trip equally among themselves. when two of the friends decided not to go

on the trip, those remaining still divided the $800 cost equally, but each friendâs share of the cost increased by $20. how many friends were in the group originally?
Business
1 answer:
kykrilka [37]4 years ago
8 0

Answer:

They were 10 friend

Explanation:

We can construct the equation system as follows:

\left \{ {{\frac{800}{friends} = a} \atop {\frac{800}{friends - 2} = a + 20}} \right.

we can solve for the number of friend by using subtritution:

\frac{800}{friends - 2} = \frac{800}{friends} + 20

800 = (\frac{800}{friends} + 20) \times (friends - 2)

800 = 800 - \frac{1600}{friends} + 20friends - 40

40 = 20 friends - 1600friends

friends(40 - 20 friends) +1,600 = 0

-20f^{2} + 40f + 1,600 = 0

we get a quadratic formula we solve for the positive root

f = 10

We know check if the root is correct:

800 / 10 = 80

800 / (10 - 2) = 100

You might be interested in
Rob, Bill, and Steve form Big Company. Rob performs $45,000 of services for his 45 shares of the company. Bill transferred prope
Mandarinka [93]

Answer:

Rob and Bill.

Explanation:

6 0
3 years ago
A company has beginning inventory of 10 units at a cost of $10 each on February 1. On February 3, it purchases 20 units at $12 e
Gre4nikov [31]

Answer:

b) $124

Explanation:

FIFO means first in, first out. Under this principle, goods that were purchased or produced earlier will be the first ones on sale.

The value of the goods sold in our case will be as follows.

The first ten items   @ $10: 10X10 =$100

Two items to make   [email protected] $12: 2x12=$24

 

Total cost: $100+$24= $124

7 0
3 years ago
WILL GIVE BRAINLIEST A business owner is aware that the Department of Labor has created rules that require overtime pay for empl
slega [8]
The correct answer is: A.)
5 0
3 years ago
You have two options for how to spend the afternoon. you can either go see a movie with your roommate or work as a tutor for the
erma4kov [3.2K]

Answer: Economic Surplus : $12

Explanation: Economic surplus is the difference between benefit and cost.

In this case, since he is working as a math tutor, he will get $45, there is no other cost. But if he goes for a movie, he will have to spend $12 on movie, which is the cost he needs to bear. The economic surplus is $12 which is not spent on the movie and worked as a math tutor.

5 0
3 years ago
Sarah is using the needs approach to determine how much life insurance to buy. Her cash needs are $30,000; her income needs are
levacccp [35]

Answer:

$130,000

Explanation:

Sarah is making use of the needs approach to determine how much life insurance to buy

The first step is to calculate the total amount of life insurance

Total amount of life insurance = Total needs - total assets

Total need = income needs + cash needs + special needs

= $140,000 + $30,000 + $100,000

= $270,000

Total assets= retirement plan + bank account + investment account

= $30,000 + $20,000 + $40,000

= $90,000

Total amount of life insurance = $270,000-$90,000

= $180,000

Since Sarah is covered by $50,000 group insurance by her employer then the additional life insurance that should be purchased can be calculated as follows

= $180,000 - $50,000

= $130,000

3 0
4 years ago
Other questions:
  • What is the problem with paying only your minimum credit card balance each month?
    13·1 answer
  • If macaroni and cheese is an inferior good, then an increase in ____
    5·1 answer
  • 1) When quantity demanded in a market is more than the quantity supplied, _____ occurs.
    9·1 answer
  • Chris can be paid in one of two ways. plan a is a salary of ​$360 per​ month, plus a commission of 9​% of sales. plan b is a sal
    11·1 answer
  • Kristina is tempted to get a credit card now that she is in college. What is one fiscally responsible reason for Kristina to get
    9·2 answers
  • Consider the following information for Maynor Company, which uses a periodic inventory system: Transaction Units Unit Cost Total
    6·1 answer
  • Question 3 of 10
    5·1 answer
  • A debt-free firm has net income of $210,000, taxes of $55,822.78, and depreciation of $42,000. What is the operating cash flow?
    7·1 answer
  • "Stock in Daenerys Industries has a beta of 0.73. The market risk premium is 10 percent, and T-bills are currently yielding 5 pe
    6·1 answer
  • The Cardinal Company had a finished goods inventory of 55,000 units on January 1. Its projected sales for the next four months w
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!