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BARSIC [14]
2 years ago
5

You use a crowdfunding website to raise money. the website keeps 5% of each donation. Five of your friends each donate the same

amount.e total funding you receive is $47.50. How much does each friend donate?
Mathematics
2 answers:
saul85 [17]2 years ago
5 0

Answer:

Step 1:

Let x represent the amount of each friend donate

Website keeps = 5%

Total funding I receive = $ 47.50

4.75x = $47.50

Step 2:

4.75 = $47.50       - <em>Write the equation</em>

\frac{4.75x}{4.75} = \frac{47.50}{4.75}            -<em> Divide both sides of the equation by 4.75</em>

<em>The solution is x = 10</em>

ANSWER: Each friend donates $10

<em>hope this helps Have a good day.</em>

Zanzabum2 years ago
3 0

Answer:

Each friend donates $10.

Step-by-step explanation:

If they keep 5% of all donations, 5% of $10 is $0.50 and you lose out on $2.50. With 5 friends, this equates to $10 per person.

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When 21 is subtracted from the square of a number, the result is 4 times the number. Find the positive solution.
wel

Let x = your number.

x^2 - 21 = 4x. Subtract 4x from both sides.

x^2 - 4x - 21 = 0. Factor.

(x - 7) (x + 3) = 0. Set each term to 0.

x + 3 = 0. Subtract 3 from both sides.

x = -3. This is the negative solution.

Set the other term equal to zero.

x - 7 = 0. Add 7 to each side.

x = 7. This is the positive solution.

7 0
3 years ago
Area of sector=?cm^2
Ivenika [448]

Step-by-step explanation:

270°/360° ×π×13²

Area of sector=398.20

6 0
2 years ago
Which equation relates the number of triangles in the figure (n) to the perimeter of the figure (p)
WITCHER [35]

Answer:

Option d is correct.

Equation : P=7n+20.

Explanation;

Given the perimeter of each figure is;

Perimeter of triangle is equal to the sum of all the sides of a triangle.

Perimeter of 1 triangle is 21

Perimeter of 2 triangle is 34 and

Perimeter of 3 triangle is 41

Let n be the number of figure and P be the perimeter of the figure;

the only equation which satisfy the given perimeter is;

P=7n+20

Check:

for n =1 which means 1 triangle then;

P =7n+20 = 7 \cdot 1 +20 = 7+20 = 27

for n = 2 , [ i.e 2 triangle]

P =7n+20 = 7 \cdot 2 +20 = 14+20 = 34

and for n =3 [i.e, 3 triangles]

P =7n+20 = 7 \cdot 3 +20 = 21+20 = 41

Therefore, the equation P =7n+20 relates the number of triangles in the figure(n) to the perimeter of the figure(P).


3 0
2 years ago
I don’t understand please help!
nikklg [1K]

Answer:

x > 10/3

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Step-by-step explanation:

3/5x + 1/3 < 4/5x - 1/3

3/5x - 4/5x + 1/3 < -1/3

-1/5x + 1/3 < -1/3

-1/5x < -1/3 - 1/3

-1/5x < -2/3

-1/5x/-1 < -2/3/-1   (Since it is both divided by a negative the sign switches, the sign also switches with multiplication. *Note: it only switches if it is negative!*)

1/5x > 2/3

5 • 1/5x > 2/3 • 5

x > 2/3 • 5/1

x > 10/3

6 0
3 years ago
9 Calculator What is the median of the data set? 3, 10, 1, 6, 10, 3, 11, 14<br><br><br><br><br>​
Svetradugi [14.3K]

Answer:

1, 3, 3, 6, 10, 10, 11, 14

(6,10)  6+10= 16  

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median is = 8

Step-by-step explanation:

6 0
2 years ago
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