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Temka [501]
3 years ago
8

A VW Bug is driving north on a straight two-lane road at a constant 38 mph and a Chevy Impala is driving south at 29 mph on the

same road heading toward the VW Bug (but in a different lane). What is the velocity of the VW Bug relative to the Chevy Impala?

Mathematics
1 answer:
vitfil [10]3 years ago
3 0

Those two vehicles are chewing up a lot of ground. Do you drive? I know it's a stupid question. Every American drives, but I have to check. When you see a car coming towards you, does it look like it's going extremely slow, so that 9 could be the answer? Or does it look extremely fast so that 67 could be the answer? I think you should be looking at fast. I live in the country so when something comes towards me I take note of it. So you should be thinking the Impala sees the bug as going north and very fast..

B

Note. The 9 would come up when someone was passing you and they were going 9 mph faster than you were going. If you were going 50 mph and someone passed you at 59 mph. it would appear to you that they were only going 9 mph. Next time you encounter this on the road, see if you agree that that is the way it works.

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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
3 years ago
Read 2 more answers
a carpenter has a board that is 8 feet long he cuts of 2 pieces one piece is 3 and a half feet long the other is 2 and one feet
kakasveta [241]
3 1/2 I think
8-3 1/2=5 1/2
5 1/2-2=3 1/2
5 0
2 years ago
Read 2 more answers
ryan has a mix of action and sports games for a total of 39 video games his action collection is three more than half his sports
iVinArrow [24]

Answer:

He have <u>15</u> action games and <u>24</u> sports games.

Step-by-step explanation:

Given:

Ryan has a mix of action and sports games for a total of 39 video games his action collection is three more than half his sports collection.

Now, to find the number of action games and sports games.

Let the sports games be x.

As, given his action collection is three more than half his sports collection.

Thus, the action games = 3+\frac{x}{2} .

Total number of video games = 39.

So, we set an equation to get the number of action games and sports games:

x+(3+\frac{x}{2})=39

x+3+\frac{x}{2} =39

<em>Subtracting both sides by 3 we get:</em>

x+\frac{x}{2} =36

\frac{2x+x}{2}=36

\frac{3x}{2} =36

<em>Multiplying both sides by 2 we get:</em>

3x=72

<em>Dividing both sides by 3 we get:</em>

x=24.

<u>The sports games he have = 24.</u>

Now, to get the action games we substitute the value of x:

3+\frac{x}{2}

= 3+\frac{24}{2}

= 3+12

= 15.

<u>The action games he have = 15.</u>

Therefore, he have 15 action games and 24 sports games.

6 0
3 years ago
A recipe for potato salad calls for 30 potatoes to make 12 quarts of potato salad. How many potatoes are required to make 4 quar
liberstina [14]

Answer:

10 potatoes.

Step-by-step explanation:

Let x be the number of  potatoes.

Then by proportion:

30/12 = x/4

12x = 4*30 = 120

x = 10.

5 0
3 years ago
Population mean = 80
alexira [117]

Answer:

The answer is : 0.0597

Step-by-step explanation:

Population mean = μ = 80

Standard deviation = σ = 20

Sample = N = 60

σ_mean = σ/√N

= (20)/√(60) = 2.582

Now we will find z1 and z2.

z1 = {(84) - μ}/σ_mean = {(84)-(80)}/(2.582)= 1.549

z2 = {(88) - μ}/σ_mean = {(88)-(80)}/(2.582)= 3.098

Now probability that the sample mean will be between 84 and 88 is given by:

Prob{ (1.549) ≤ Z≤ (3.098) } = (0.9990) -(0.9393) = 0.0597

4 0
3 years ago
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