Add all the numbers that are the same, for example add the x’s and then leave the 35 next to it.. for example: 4x - 35!!
6 pennies, 12 nickels, 8 dimes, 4 quarters = 30 coins
a) add the probability for drawing a dime and drawing a quarter together:
12/30 + 4/30 = 16/30 = 8/15
The probability is 8/15 or 53%
b) multiply the probability for drawing a penny and drawing a nickel:
6/30 x 12/30 = 72/900 = 2/25
The probability is 2/25 or 8%
c) multiply the probability for drawing quarters but take away one of the total coins and the amount of quarters each time:
4/30 x 3/29 x 2/28 = 24/24360 = 1/1015
The probability is 1/1015 or 0.099%
X + 9 = 2x - 8
2x - x = 9 + 8
x = 17
BC = x = 17
answer
17 units
Answer:
Variable
Step-by-step explanation:
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