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lbvjy [14]
1 year ago
13

Ariana has a points card for a movie theater.

Mathematics
1 answer:
Amanda [17]1 year ago
5 0

Answer:

6

Step-by-step explanation:

In the first step I simply took 25 away from 76, as she already has 25 tickets meaning she needs 51 more.

than I divided 51 by 8, which would tell us the number of visits she needs to make

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An aquarium tank can hold 7200 liters of water. there are two pipes that can be used to fill the tank. the first pipe alone can
Arada [10]

The first pipe pumps out

\dfrac{7200\text{ L}}{48\text{ min}}=\dfrac{150\text{ L}}{1\text{ min}}

while the second pipe pumps out

\dfrac{7200\text{ L}}{96\text{ min}}=\dfrac{75\text{ L}}{1\text{ min}}

So together, both pipes pump out

\dfrac{150+75\text{ L}}{1\text{ min}}=\dfrac{225\text{ L}}{1\text{ min}}=\dfrac{7200\text{ L}}{32\text{ min}}

That is, with both pipes filling the tank, it should take 32 minutes total.

4 0
3 years ago
What is the area of a rectangle with a length of yard and width of yard?
nirvana33 [79]

Answer: The formula for the area of a rectangle is: A = L * W where L is the length and W is the width. where S is the length of one side.

Step-by-step explanation:

Hope This helps, Brainlees, please

8 0
3 years ago
How do you calculate the volume of a prism
Harman [31]

Answer:

L x W x H

Step-by-step explanation:

Find area of one plane, then multiply by the prism's height.

7 0
3 years ago
Suppose that in a casino game the payout is a random variable X . If X is positive, you gain money, if negative, you lose.
Vanyuwa [196]

Answer:

the conditional probability that X = 1 , X = 2 and X = 3 is  0.7333 (73.33%) , 0.25 (25%) and 0.0167 (1.67%) respectively

Step-by-step explanation:

a player wins money when i>0 then defining event W= gain money , then

P(W) = p(i>0) = p(1)+p(2)+p(3)

then the conditional probability can be calculated through the theorem of Bayes

P(X=1/W)= P(X=1 ∩ W)/P(W)

where

P(X=1 ∩ W)= probability that the payout is 1 and earns money

P(X=1 / W)= probability that the payout is 1 given money was earned

then

P(X=1/W)= P(X=1 ∩ W)/P(W) = P(X=1) / P(W) = p(1) /[p(1)+p(2)+p(3)] = 11/40 /(11/40+3/32+1/160 ) = 0.7333 (73.33%)

similarly

P(X=2/W)=p(2) /[p(1)+p(2)+p(3)] = 3/32 /(11/40+3/32+1/160 ) = 0.25 (25%)

P(X=3/W)=p(2) /[p(1)+p(2)+p(3)] = 1/160 /(11/40+3/32+1/160 ) = 0.0167 (1.67%)

8 0
3 years ago
Vertices (15,0) and (-15,0), conjugate axis of length 4 units
algol [13]

Answer:

Step-by-step explanation:

16 units

8 0
3 years ago
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