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OleMash [197]
3 years ago
7

The National Research Council recommends keeping a 1:3, colon, 3 copper to zinc ratio in a horse's diet. If the horse is getting

420 milligrams (\text{mg})(mg)left parenthesis, start text, m, g, end text, right parenthesis of zinc per day, how many milligrams of copper does the Council recommend the horse have?

Mathematics
1 answer:
kap26 [50]3 years ago
4 0

Step-by-step explanation:

Below is an attachment containing the solution.

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X-3/4 = 2x-9/7<br><br> Please answer it I’ll mark your answer as BRAINLIEST
lidiya [134]
<h3><u>Answer</u> :</h3>

:\implies\sf\:x-\dfrac{3}{4}=2x-\dfrac{9}{7}

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:\implies\boxed{\bf{\red{x=\dfrac{15}{28}}}}

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3 years ago
4x-7x=13 in a fraction
Naddika [18.5K]
4x-7x= 13
⇒ -3x= 13
⇒ x= 13/(-3)
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The final answer is x= -13/3~
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3 years ago
Wahaj buys a pizza for rs 800.A week later,the same piza costs rs 900.When wahaj asks the manger for the reason ,he explain that
lions [1.4K]

Answer:

12.5%

Step-by-step explanation:

The price increased from 800 to 900. So what is the PERCENTAGE INCREASE??

The increase is 900 - 800 = 100

To find this in terms of original, we need to divide 100 by 800 and multiply by 100 to get the "percentage". Let's do it:

\frac{100}{800}*100=12.5

So the increase is 12.5% and thus the general sales tax is 12.5%

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Answer:

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Step-by-step explanation:

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