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slega [8]
2 years ago
7

The average value of all the pennies, nickels, dimes, and quarters in Paula's purse is 20 cents. If she had one more quarter, th

e average value would be 21 cents. How many dimes does she have in her purse
Mathematics
1 answer:
sveta [45]2 years ago
7 0

Answer:

Step-by-step explanation:

The average value of all the pennies, nickels, dimes, and quarters in Paula's purse is 20 cents. If she had one more quarter, the average value would be 21 cents. How many dimes does she have in her purse

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Solve by completing the square p^2 +10p - 3 = 0
Mrac [35]

Solving p^2 +10p - 3 = 0 by completing the square method we get (p+5)^2-28=0

Step-by-step explanation:

We need to solve by completing the square method.

We are given: p^2 +10p - 3 = 0

The Completing square method is: (a+b)^2 = a^2+2ab+b^2

Solving:

p^2 +10p - 3 = 0\\For \,\,making\,\,perfect\,\,square\,\,we\,\,add\,\,and\,\,subtract\,\,(5)^2\\p^2+2(p)(5)^2+(5)^2-3-(5)^2=0\\(p+5)^2-3-25=0\\(p+5)^2-28=0

Solving p^2 +10p - 3 = 0 by completing the square method we get (p+5)^2-28=0

Keywords: completing the square method.

Learn more about completing the square method at:

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#learnwithBrainly

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