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LenaWriter [7]
3 years ago
8

A company vehicle is available in black or blue.A random sample includes seven black vehicles and five blue vehicles.If there ar

e 300 vehicles then how many are blue
Mathematics
2 answers:
hram777 [196]3 years ago
8 0

Answer:

125 blue vehicles

Step-by-step explanation:

In this question, we are going to estimate the number of vehicles of a specific color given that there are some numbers of both vehicle models present in a sample.

Now to solve this question, we are going to treat the sample numbers as a ratio.

The ratio here is thus 7 black to 5 blue I.e 7:5

We have 300 vehicles, we now want to estimate the number of blue vehicles present.

From the sample ratio, there are a total of 12 vehicles

Now the total number of blue vehicles would be 5/12 * 300 = 125

There are 125 blue vehicles

baherus [9]3 years ago
7 0

Answer:

125

Step-by-step explanation:

Given that the company has only two colors of cars; black and blue. It means that the number of black cars plus the number of blue cars gives the number of cars owned by the company.

If there are seven black vehicles and five blue vehicles from a random check, this check must have been done on 12 vehicles. The number of blue cars based on the outcome of the random check on 12 cars will be

= 5/12 * 300

= 125 cars

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Answer: EX:There are 10 numbers from 1 - 10

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The favorable probability is 4 / 10=2 / 5

hope it helps

Step-by-step explanation:

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3 years ago
The lateral surface area is _ square centimeters.
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3 years ago
Stock worth $80 a share dropped in value by 15% on Tuesday, then increased by $7 the next Wednesday and, finally, increased by 1
Nutka1998 [239]
<h2>Steps</h2>

So here are a couple expressions when a value changes by percentage (p = percentage in decimal form and m = original value):

  • When <em>decrease</em>: (1 - p)m
  • When <em>increase</em>: (1 + p)m

So firstly, the $80 share dropped by 15%. Since this is a <em>decrease</em>, follow the appropriate expression:

15\%=0.15\\\\(1-0.15)*80\\0.85*80\\68

<em>On Tuesday, the share went from $80 to $68</em>

Next, on Wednesday the share increased by $7. With this, just add $68 and 7.

68+7=75

<em>On Wednesday, the share went from $68 to $75</em>

Lastly, on Thursday the share increased by 12%. Since this is an <em>increase</em>, follow the appropriate expression:

12\%=0.12\\\\(1+0.12)*75\\1.12*75\\84

<h2>Answer</h2>

<u>The final price of the share is $84.</u>

7 0
3 years ago
Please help me out with this guys. No Links Please!
Sergio [31]
I think it is 29%? I am not 100% sure though...
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