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Genrish500 [490]
3 years ago
15

There were 300 more cards sold during June than in July and 400 less cards were sold during April compared to July.

Mathematics
1 answer:
Lady_Fox [76]3 years ago
5 0

Anwer:800

Step-by-step explanation:

Subtract and add labro

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There is a 30 percent chance that A can fix her busted computer. If A cannot, then there is a 40 percent chance that her friend
Solnce55 [7]

Answer:

(a) 0.70

(b) 0.40

Step-by-step explanation:

Mutually-exclusive events are those events which cannot occur together.

Consider that events X and Y are mutually exclusive.

P (X and Y) = 0

Here the two events can be defined as follows:

A = A can fix the busted computer

B = B can fix the busted computer

The information provided are as follows:

P (A) = 0.30

P (B) = 0.40

If A cannot, then there is a chance that her friend B can fix it.

The above statement suggest that the events A and B are mutually exclusive, i.e. if A can fix the computer then B does not have to and if cannot then only B will fix it.

That is, P (A and B) = 0.

(a)

Compute the probability it will be fixed by either A or B as follows:

P (A or B) = P (A) + P (B) - P (A and B)

                = 0.30 + 0.40 - 0

                = 0.70

Thus, the probability it will be fixed by either A or B is 0.70.

(b)

Compute the probability that if it is fixed it will be fixed by B as follows:

P (not A and B) = P (B) - P (A and B)

                         = 0.40 - 0

                         = 0.40

Thus, the probability that if it is fixed it will be fixed by B is 0.40.

8 0
3 years ago
A container has 10 oz of salt water containing 59% salt. Roberto added 20 oz of salt water containing 20% salt to the container.
zubka84 [21]
Does it give u answer choices
4 0
3 years ago
The two dot plots show the number of guests per night.
LiRa [457]

A dot plot or for chart is a statistical plot consisting of data points that are plotted on a scale using dots.

<h3>What is a dot plot?</h3>

Your information is incomplete. Therefore, an overview of a dot plot will be given. A dot plot is a data visualization where the day points are plotted as dots on the graph.

Dot plots are used for relatively small data sets. It uses the dots to show where the data values in the distribution are.

Learn more about dot plot on:

brainly.com/question/21862696

7 0
2 years ago
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if you place a 5ft ladder against the top of a 4ft building how many feet will the bottom of the ladder be from the bottom of th
nika2105 [10]

Answer:

3 ft.

Step-by-step explanation:

When you imagine the sentence, it is a right angled triangle. In this case, it's a Pythagoras Theorem. The formula for it is:

a²(opposite) + b²(adjacent) = c²(hypotenuse)

The building is the opposite, the distance between the foot of the ladder and the building is the adjacent, while the ladder is the hypotenuse.

We have the measurements except for the adjacent. So it will be:

c² - a² = b²

5² - 4² = b²

25 - 16 = b²

9 = b²

√9 = b

b = 3 ft

The answer is 3 ft.

5 0
3 years ago
Mrs. Gray purchase a 15 pound turkey for $12.75 what was the price of the turkey per pound
Rus_ich [418]

Answer:

0.85 I believe

Step-by-step explanation:

3 0
3 years ago
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