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MAXImum [283]
3 years ago
12

A survey revealed that 31% of people are entertained by reading books, 39% are entertained by watching TV, and 30% are entertain

ed by both books and TV. What is the probability that a person will be entertained by either books or TV
Mathematics
1 answer:
tester [92]3 years ago
3 0
1% entertained by books
9% entertained by TV
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Solve each quadratic equation. Show your work.<br><br><br> 14. (2x – 1)(x + 7) = 0
melisa1 [442]
<span>(2x – 1)(x + 7) = 0

2x-1=0
2x=1
x=1/2
x=0.5

x+7=0
x= -7
</span>
5 0
2 years ago
Read 2 more answers
3. You are a senior consultant at a highly prestigious agency. You did a great job in 2020,
Anastasy [175]

Answer:

(a)The highest expected payout option 1

(b)1 and 3

(c)Option 1

Step-by-step explanation:

In this you just multiply the amount you are paid by chance if all are favorable to you, so in option 1 you would get $2,000 for each head you get on a flipped coin, so that would be 10*$2,000=$20,000 that's the highest paid, in the dice you get a maximum of 6 dots each, that would make $6,000*3=$18,000.

Rolling the dice can get you 5 scenarios where you don't get $6,000 when all three are lower than $6,000 which would be getting three 1's, two 1's and a 2, ot two 2's and a 1. That's why only option 3 and 1 are available for an almost certainity of getting $6,000

To know this you have to remember last problem, the getting $9,000 will never give you $16,000, and the dice would give you only 3 scenarios where you could end up winning $16,000 whihc would be getting all 6's, two 6's and a 5, or twop 5's and a 6, so your best option would be flipping the coin.

5 0
3 years ago
A city library has 9440 non-fiction books The Librarian wants to divide the books evenly among easy 80 shelves How many books wi
gulaghasi [49]

118 book on each shelf 9440 divided by 80=118

3 0
3 years ago
Read 2 more answers
Manori’s bag has 10cent and 20cent coins. She has 202 coins with a total value of $31.90. How many 20cent coins does manori have
ira [324]
  • Answer:

<em>a = 85 10cent coins</em>

<em>b = 117 20cent coins</em>

  • Step-by-step explanation:

<em>a = 10c coins</em>

<em>b = 20c coins</em>

<em>$31.90 = c3190</em>

<em>a + b = 202 => a = 202 - b</em>

<em>10a + 20b = 3190</em>

<em>10(202 - b) + 20b = 3190</em>

<em>2020 - 10b + 20b = 3190</em>

<em>10b = 3190 - 2020</em>

<em>10b = 1170</em>

<em>b = 117 (20cent coins)</em>

<em>a = 202 - 117</em>

<em>= 85 (10cent coins)</em>

6 0
3 years ago
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Identity the property shown in the example below.<br> -8+8= 0
mash [69]

Answer:

Commutative Property

Step-by-step explanation:

-8+8 = 0

0 = 0

8 0
3 years ago
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