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Gekata [30.6K]
3 years ago
10

Alex bought six books priced at $8 each. He got a discount of 20% off the total cost. How much did Alex pay for the books? Write

your answer up to two decimal places
Mathematics
2 answers:
Valentin [98]3 years ago
5 0

Answer: The amount paid by Alex = $38.4

Step-by-step explanation:

Given: The cost of each book = $8

Then the total cost of six books = 6\times8=\$48

The discount percent on total cost = 20 %

Then,  discount amount = 20% of total cost

=0.20\times48=\$9.6vvvvvvv

Therefore, the amount paid by Alex = 48-9.6=\$38.4

Hence, the amount paid by Alex = $38.4

Yanka [14]3 years ago
3 0
6 books at $ 8 = (6 * 8) = 48

if he got a discount of 20%, then he paid 80%
0.80(48) = 38.40 <== what he paid
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Joe owns a stock which has probability .5 of going up. This morning, he bought a ticket in a lottery game which gives him a prob
Anit [1.1K]

Answer:

The probability that Joe's stock will go up and he will win in the lottery  is 0.00005.

Step-by-step explanation:

Let the events be denoted as:

<em>X</em> = the stock goes up

<em>Y</em> = Joe wins the lottery

Given:

P (X) = 0.50

P (Y) = 0.0001

The events of the stock going up is not dependent on the the event of Joe winning the lottery.

So the events <em>X</em> and <em>Y</em> are independent of each other.

Independent events are those events that can occur together at the same time.

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Compute the value of P (<em>X ∩ Y</em>) as follows:

P(X\cap Y)=P(X)\times P(Y)=0.50\times 0.0001=0.00005

Thus, the probability that Joe's stock will go up and he will win in the lottery  is 0.00005.

3 0
3 years ago
Read 2 more answers
Find the sine of both angle A and angle B.
olchik [2.2K]
Sin = opposite/hyp

Sin A = 10/26   = 5/13

Sin b = 24/26 = 12/13

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Hope this helps



6 0
3 years ago
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fredd [130]

Answer:

X = -8

Step-by-step explanation:

-7(x-5)=91

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5 0
2 years ago
Which expressions can be used to find the volume of the pyramid? Select three choices
Rashid [163]

Answer:

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8 0
3 years ago
The length of a rectangle is 8 inches more than three times the width. the perimeter is 88 inches. find the length and width.
Sav [38]
We can say L as length and W as the width 

L= 3w + 8 

The formula for perimeter is 2L + 2W = P. We can substitute L in as "3w+8" to make the equation... 

2(3w+8)+2w=88        Now, we can simplify by distributing the 2 to each term
6w+16+2w=88
8w+16=88               Then subtract 16 from each side..
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5 0
3 years ago
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