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Verdich [7]
3 years ago
8

A charity is selling raffle tickets at $5 apiece. Out of the 100 tickets sold, ten third-place winners will be drawn, each winni

ng $20. Five second-place winners will be drawn, each winning $50. Lastly, one grand prize of $100 will be awarded. Is a raffle with these rules a good idea for the charity? Why or why not?
Mathematics
2 answers:
Eduardwww [97]3 years ago
5 0
The Answer is No because that will replace with 0.50cents
Vsevolod [243]3 years ago
3 0
The answer is <span>No, because one ticket’s expected value is worth $0.50 more than the face value. </span>
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Classify The numbers as prime or composite <br> Using the numbers 37 65 71 82
mr_godi [17]

Answer:

Prime= 37, 71 Composite=  65, 82

Step-by-step explanation:

Prime numbers can only be divided by 1 and itself and composite numbers can be divided by more.

5 0
3 years ago
When x =8, y = 20. Find y when x = 42
nadya68 [22]
X/y
- 8/20=42/y
- 0.4=42/y
- y=42/0.4
- y=105
7 0
3 years ago
Write an equation in slope-intercept form for the line passing through the pair of points. (–1, 2), (4, –3)
dybincka [34]

Answer:

y = - x + 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 1, 2) and (x₂, y₂ ) = (4, - 3)

m = \frac{-3-2}{4+1} = \frac{-5}{5} = -1, hence

y = - x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (- 1, 2), then

2 = 1 + c ⇒ c = 2 - 1 = 1

y = - x + 1 ← equation in slope- intercept form

8 0
3 years ago
$3000 is invested in an account at interest rate r, compounded continuously. Find the time required for the amount to triple. (A
arsen [322]

Answer:

36.62\ years  

Step-by-step explanation:

<u><em>The value of r is the question is</em></u>

r=0.03

we know that

The formula to calculate continuously compounded interest is equal to

A=P(e)^{rt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest in decimal  

t is Number of Time Periods  

e is the mathematical constant number

we have  

t=?\ years\\ P=\$3,000\\A=\$9,000\\r=0.03  

substitute in the formula above

9,000=3,000(e)^{0.03t}  

solve for t

3=(e)^{0.03t}  

Apply ln both sides

ln(3)=ln[(e)^{0.03t}]  

Apply property of logarithms

ln(3)=(0.03t)ln[(e)]  

Remember that

ln(e)=1

ln(3)=(0.03t)  

t=ln(3)/(0.03)=36.62\ years  

5 0
3 years ago
Think about the ratio of circles and stars . Of the 8 circles,how many stars would there be?
nasty-shy [4]

Answer:

12

Step-by-step explanation:

There are 4 circles, 6 stars. The ratio is 4/6 = 2/3

if there is 8 circles in order to get the same ratio 8/x = 2/3 => x = 12

4 0
3 years ago
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