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
DiKsa [7]
3 years ago
15

Three friends say they are friends A,B and C and they want to buy a teacher a gift so they each put in $10($30 total) and a four

th friend say he is friend D and uses the money and buys a $25 gift and has $5 left and gives each of the three friends $1 back so they technically used $9 each but 9x3=27 and there is $2 left from the $5 but 27+2=29 so when is the last dollar like how does this work?
Mathematics
1 answer:
vlada-n [284]3 years ago
4 0

Answer:

Step-by-step explanation:

You are using the wrong accounting system

Forget the nine dollars.

If the thing bought was 25 dollars, then each one of A B and C put in 25/3 = 8.3333 dollars. If 1 dollar each was going back, then the sum became 9 1/3 dollars. 3 * 9 1/3 = 27 + 1 = 28. There is 2 dollars left. Everything is fine.

25 + 3 = 28

The three each got 1 dollar back. But the total accounted for is 25 + 3 = 28

There's 2 left over. That makes 30. Everything's fine. There is no missing dollar.

You might be interested in
What are the coordinates of the image of C if it is reflected across the x-axis?
Svetradugi [14.3K]

Answer:

(-2, 4)

Step-by-step explanation:

~When reflecting a point of the x-axis, the x value (or first number inside the parenthesis) does not change.

The reason the x-value does not change is because you are reflecting over the x-axis, making the point go up or down. That will change the y-value but the x-value only changes if you move to the left or the right. In this case, you can see that the point's x-value is -2, so that will not change. It's current y-value however is -4. When reflecting over an axis, the number that is changing (in this case the y-value) will just be flipped from positive to negative, or vise versa. In this case, -4 will be reflected to be 4, making point C reflected over the x-axis (-2, 4).

5 0
3 years ago
Read 2 more answers
Haley buys 18 bars of chocolate which cost her $5.40. TO raise money for charity she sells them at 40 cents each. She manages th
azamat

Answer:

33.333...% over the base 100% (100% is representing the $5.40)

Step-by-step explanation:

she gets $7.20 from selling the 18 chocolate bars

7.20 divided by 5.40 is 1.3333...

the 1 in 1.3333... represents the base 5.40 and the 0.3333... represents the profit

8 0
1 year ago
F(x)= x squared + 6x + 8
defon

Answer: (x+4) (x+2)

Step-by-step explanation:

x^2 + 2x + 4x +8

4 0
3 years ago
11 3/4 x 15 3/4 ?????????
Novay_Z [31]

Answer:

185 1/16

Step-by-step explanation:

3 0
3 years ago
What is the percent of 2wrong out of 5?
Pie
The answer is 60% but you can make it higher if your teacher let's you correct it.
5 0
3 years ago
Other questions:
  • J is 25 more than 3 what is the anwer
    9·1 answer
  • What equation results from completing the squre and then factoring x^2+10=15
    7·1 answer
  • Use the slope of the given line to construct a parallel line
    13·2 answers
  • How are the functions y=2x and y=2x-3 related
    9·1 answer
  • The total length of rope in feet used to put up tents is 60 times the number of tents
    8·1 answer
  • Compare the two fractions using <, >, or =. 6/12 ___ 1/2
    11·2 answers
  • Are two triangles ABC and A’B’C’ congruent ich hc = h‘c and sc = s‘c and alpha= alpha
    10·1 answer
  • Simplify the equation -6x+2-3x
    6·2 answers
  • 58+(4x-4)<br> What is the answer <br> Give me a step by step
    15·1 answer
  • Help me wit my math please
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!