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user100 [1]
3 years ago
12

A piggy bank has 42 nickels, 38 pennies, 19 dimes, and 51 quarters. If a coin is randomly taken from the piggybank, what is the

probability the drawn coin is a penny?
someone help!
Mathematics
1 answer:
sweet [91]3 years ago
8 0
38/150 would make for a 25.3% chance for a penny
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Write a quadratic function f whose only zeros are -3 and -12
emmasim [6.3K]

Answer:

Step-by-step explanation:

f(x) = (x + 3)(x + 12)

f(x) = x^2 + 3x + 12x + 36

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2 years ago
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earnstyle [38]

Answer:

\angle 1 = 45 degrees

Step-by-step explanation:

Sum of 3 angles in a triangle is 180..

The angles given are:

60

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1

So we sum to 180 and write:

60+7x+12+\angle 1=180\\72+7x+\angle 1=180\\7x+\angle 1=108

Also, straight angle is 180 degrees, thus Angle 1 and (14x + 9) angle is sum to 180, thus we can write:

14x+9+\angle 1=180\\14x + \angle 1=171

Or we can write this as:

14x + \angle 1=171\\\angle 1 = 171 - 14x

We substitute this expression for Angle 1 into 1st equation we got and solve for x first,

7x+\angle 1 = 108\\7x+( 171 - 14x)=108\\-7x=-63\\x=9

Since x = 9, the angle "14x + 9" would be:

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Hence Angle 1 would be:

\angle 1 + 14x + 9 = 180\\\angle 1 + 135 = 180\\\angle 1 = 45

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2 years ago
What is 2x - y = last question
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Answer:

Step-by-step explanation:

Let's simplify step-by-step.

2x−y

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