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irinina [24]
2 years ago
11

Thirteen is about what percent of 20

Mathematics
1 answer:
Alla [95]2 years ago
3 0
13 is what percent of 20? = 65.



13: 20*100 =

(13*100): 20 =

1300: 20 = 65



Percentage solution with steps:

Step 1: We make the assumption that 20 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x​.

Step 3: From step 1, it follows that $100\%=20$100%=20​.

Step 4: In the same vein, $x\%=13$x%=13​.

Step 5: This gives us a pair of simple equations:

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Step-by-step explanation:

Since we have given that

Cost of first type = $2 per pound

Cost of second type = $7 per pound

Cost of mixture = $4 per pound

So, we need to find the quantity of each type to make 75 pounds of a blend.

We will use "Mixture and Allegations":

  First type         Second type

       2                         7

                     4

---------------------------------------------------

     7  - 4       :              4 - 2

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So, Quantity of first type would be

\dfrac{3}{5}\times 75=3\times 15=45\ pounds

Quantity of second type would be

\dfrac{2}{5}\times 75=2\times 15=30\ pounds

Hence, there are 45 pounds and 30 pounds of each type respectively.

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