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zavuch27 [327]
4 years ago
8

An item that was selling for $80 is reduced to $42. Find the percent decrease in

Mathematics
1 answer:
Westkost [7]4 years ago
3 0

Answer:

47.5%

Step-by-step explanation:

You have to first subtract 80 and 42 to find the decrease first. This is 38. Now, you have to divide this by the original number which is 80. So 38 divided by 80 is 0.475.

Now multiply this by 100.

You can easily move the decimal point to the right.

So you would get 47.5%

Hope this helped!

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Square root of 27 lies between which two natural numbers?​
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Answer:

5,6

Step-by-step explanation:

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3 years ago
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James and Bethany Morrison are celebrating their 10th anniversary by having a reception at a local reception hall. They have bud
ddd [48]

Answer: See Below

Step-by-step explanation:

Create the equation:

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Or

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3 years ago
There are three blue marvels and five red marvels in a bag you randomly select a marble and put it it back in the back if you do
olga nikolaevna [1]

Answer:

25 times

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Red Marvels: 5

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= 5/8 × 40

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7 0
2 years ago
What conditions give 2 roots, one root and no root?
hichkok12 [17]
The discriminant D is found by this formula

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2) If D is equal to zero (D = 0), then there is exactly one root. This root is rational assuming the coefficients are integers. This is called a double root

3) If D > 0, then there are 2 different roots. If D is a perfect square, then these two roots are rational numbers (aka fractions of whole numbers) assuming the coefficients are integers. If D is not a perfect square, then the two roots are irrational numbers. 
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3 years ago
What does how many mean?
Serga [27]
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