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netineya [11]
2 years ago
9

Item 4 A used car dealer sells SUVs and cars. Of all the vehicles, 70% are cars. Of all the vehicles, 20% are red cars. What is

the probability that a car chosen at random is red? Round your answer to the nearest tenth of a percent
Mathematics
1 answer:
snow_tiger [21]2 years ago
7 0

Answer:

<h2>32%</h2>

Step-by-step explanation:

The probability that two independent events occur together is the product of their individual probabilities, but we are not looking for a red car to be chosen at random, the problem already specifies that it is a car.  

So we are told that the probability that any vehicle chosen at random is red, regardless of whether it is a car or a SUV is 32%. So 32% is the probability the problem is asking: that when a car is chosen, that it is red.

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Renna pushes the elevator button, but the elevator does not move. The mass limit for the elevator is 450 kg, but Renna and her l
pychu [463]

Answer:

620-37.4p\leq 450

Step-by-step explanation:

Let p be the number of identical packages.

We have been given that each package has a mass of 37.4 kg, so weight of p packages will be 37.4p.

The total mass of Renna and her load of identical packages is 620 kg.

We have been given that the mass limit for the elevator is 450 kg. This means that Renna can remove p packages from 620 kg such that 620 minus weight of p packages will be less than or equal to 450 kg.

We can represent this information in an inequality as:

620-37.4p\leq 450

Therefore, the inequality 620-37.4p\leq 450 can be used to determine the number of packages, p, Renna could remove from the elevator to meet the mass requirement.

3 0
2 years ago
Read 2 more answers
A number, y, is equal to the difference of a larger number and 3. The same number is one-third of the sum of the large number an
Aleonysh [2.5K]
<span>Let the larger number be x.

</span><span>A number, y, is equal to the difference of a larger number and 3.

y = x - 3

x - y = 3

</span>The same number is one-third of the sum of the large number and 9.

y = (1/3)(x + 9)

3y = x + 9

x - 3y = -9

The equations are:
x - y = 3
x - 3y = -9
5 0
2 years ago
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Justin and Austin decide to play catch after school. they start at the Same point. Justin walks 50feet north and 20,feet west. A
Trava [24]
They are approximately 120 ft apart
7 0
2 years ago
A faucet is leaking water at a rate of 2.5 cups per hour. How many cups of water will leak in 8 hours? A. 3.2
VikaD [51]

Answer:

20

Step-by-step explanation:

In 8 hours, it will leak 2.5 * 8 = 20 cups of water.

3 0
2 years ago
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Two friends went rowing on the river. They first traveled with current for 3 hours. The way back took them 4 hours and 48 minute
kaheart [24]

Answer:

1.5 mph

Step-by-step explanation:

Let speed of boat be x

let speed of current be c

Also, note D = RT

D is distance

R is rate

T is time

Now, for first leg, we can write:

(x+c)3 = D

And for second leg , we can write:

(x-c)4.8 = D  [note 4 hour 48 minutes is 4.8 hours]

We can equate both D's to get:

(x+c)3 = (x-c)4.8

3x + 3c = 4.8x - 4.8c

7.8c = 1.8x

We know x = 6.5 [given], plugging it in and solving for c:

7.8c = 1.8(6.5)

c = 1.5

Speed of Current = 1.5 miles per hour

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2 years ago
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