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
zimovet [89]
2 years ago
7

A man goes into a store and says, “If you give me as much money as I have with me now, I will spend $10 in your store.” The stor

e owner agrees, and the man spends the money.
He goes into a second store and again says, “If you give me as much money as I have with me now, I will spend $10 in your store.” Again, the owner agrees, and the man spends the money.
In a third store, he repeats his proposition. The proprietor agrees, and the man spends the money.
At this point, the man has no money left. How much money did he have to begin with?
Mathematics
1 answer:
FromTheMoon [43]2 years ago
6 0

Answer:

$8.75

Step-by-step explanation:

Let x = the amount the man originally had

The man has $x and says "if you give me $x, I will spend $10."

y = amount he has after 1st proposition = x + x - 10 = 2x - 10

He repeats this procedure, now with $2x-10 in his pocket...

z = amount he has after 2nd proposition = (2x - 10) + (2x - 10) - 10 = 4x - 30

He repeats this procedure, now with $4x-30 in his pocket...but this time he is left with zero dollars...

r = amount he has after 3rd proposition = (4x-30) + (4x-30) - 10 = 8x-70 = 0

8x - 70 = 0,

x = $8.75

You might be interested in
For what value of x is this equation true? 10x−2(x+6)=52 10x−2(x+6)=52 A x=5 x=5 B x=5 3 4 x=534 C x=7 1 9 x=719 D x=8 x=8For wh
insens350 [35]

Answer:

x = 8

Step-by-step explanation:

10x - 2 (x + 6) = 52

Let X become 8

10 (8) - 2 (8 + 6) = 52

80 - 2 (14) = 52

80 - 28 = 52

52=52

7 0
3 years ago
Ted runs a coffee-distributing company with monthly fixed costs of $3600. He also spends $1.50 for each 16 ounce bag of coffee t
WARRIOR [948]

Answer:

10

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Choose the system of inequalities that best matches the graph below.
lapo4ka [179]

Answer:

D) y\:, y\:>\:-x

Step-by-step explanation:

The blue boundary line has a y-intercept of 2 and a slope of  2.

It has equation : y=2x+2

Since the boundary line is not solid and the lower half plane of this line is shaded, its inequality is

y\:

The blue boundary line passes through the origin and has slope -1.

Its equation is y=-x.

Since the boundary line is not solid and the right half-plane is shaded, its inequality is y\:>\:-x

The correct choice is D.

4 0
3 years ago
I
ludmilkaskok [199]

Answer:

9 blue marbles

Step-by-step explanation:

4 : 3 ratio

12 : x

12 / 4 = 3

4 × 3 : 3 × 3

12 : 9

4 0
2 years ago
Every day, Katie looks for seashells on the beach. She has 282828 shells in her collection. Katie finds 121212 more shells each
Hoochie [10]

Katie won't have more than  100 shells until the 7th day

8 0
3 years ago
Other questions:
  • Is y equals 2x + 4 linear or non-linear
    15·2 answers
  • What is the volume of this square pyramid? 1296 cm³ 1620 cm³ 3888 cm³ 11,664 cm³ A square pyramid with height of twelve centimet
    12·1 answer
  • As Jackson built a square fence around his garden, he wondered how much he would have to pay if he increased the length of each
    15·1 answer
  • 8 avocados cost $16.what is the cost of the one avocado
    9·2 answers
  • Round 5,963.251 to the place value given
    7·1 answer
  • A reflection maps the point (2, 3) to the point (2, -3).
    5·1 answer
  • Which statement describes the domain of the function
    12·2 answers
  • This is too much for me <br> if you know please answer
    10·2 answers
  • What is the quotient of 5472 and 81?
    7·1 answer
  • 9. Select one of the factors of 3x + 4x -4.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!