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chubhunter [2.5K]
3 years ago
10

Of new calculators tested,8 were defective and 42 passed inspection. What ratio compares the number of defective calculators to

the number of new calculators?
Mathematics
2 answers:
sesenic [268]3 years ago
4 0
The number of new calculators tested was 50 . . . 8 were bad and 42 were good.

The ratio of defective ones to new ones tested is 8:50 or 4:25 or 16% .
tatuchka [14]3 years ago
3 0
You simply put the 2 numbers together to find the answer, which is 8:42.  

You want to find the ratio in its simplest form.  Therefore, you want to find the lowest common multiple of 8 and 42.  
2 goes into both numbers.  
8 / 2 = 4.  
42 / 2 = 21

The answer is 4:21. 
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The value of c is 233.3

Step-by-step explanation:

Given equation is:

\frac{18}{20}c-250=-40

To find the value of c, we have to isolate c on one side of the equation

So,

Adding 250 on both sides

\frac{18}{20}c-250+250=-40+250\\\frac{18}{20}c=210

Multiplying by 20 on both sides

20*\frac{18}{20}c=210*20\\18c=4200

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Rounding off to the nearest one decimal place

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The value of c is 233.3

Keywords: Linear Equation, Solution of linear equation

Learn more about linear equations at:

  • brainly.com/question/3799248
  • brainly.com/question/3950386

#LearnwithBrainly

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