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jeka94
4 years ago
7

Jeff had $14.50. She spent $4.35 at the snack bar and $5.25 at the arcade. What is the exact amount of money jeff has left?

Mathematics
2 answers:
Ilia_Sergeevich [38]4 years ago
7 0

Answer:

$4.90

Step-by-step explanation:

14.50-4.35=10.15

10.15-5.25=4.90

Mariana [72]4 years ago
5 0
14.50-4.35-5.25=4.9.
She has $4.90
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In the lottery every week, 2,000,000 tickets are sold for $1 apiece. Say 4000 of these tickets pay off $30 each, 500 pay off $80
jarptica [38.1K]
The expected value is just the weighted average of how much one ticket wins. To calculate it, we need to find the probabilities of winning each dollar amount, multiply each probability with it's respective dollar amount, then find the sum.

Let's call the winnings from one ticket X:

P(X=30) = 4000/2000000 = 0.002

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P(X=1200000) = 1/2000000 = 0.0000005

E(X) = 30*P(X=30) + 800*P(X=800) + 1200000*P(X=1200000) = 0.06 + 0.2 + 0.6 = 0.86

The answer is $0.86
4 0
4 years ago
On easter morning 20 eggs were hidden kyla found 1/2 of them kevin found 1/4 of them what fraction of eggs were left to find
kotykmax [81]
\frac{1}{2}*20= 10 
 and \frac{1}{4}*20= 5
This means that Kayle found 10 eggs while Kevin found 5 eggs.
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Hope this helps!
3 0
4 years ago
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Ludmilka [50]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
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Keith had 261 dollars to spend on 9 books. After
Paul [167]
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3 years ago
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Answer:

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