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%
You can use substitution here. First, get y alone:
14x + y = -4
subtract 14x from each side
y = -4 - 14x
Then, plug y into the second equation
-4 - 14x = 3x² - 11x - 4
then solve from there
Hope this helps :)
Answer:
$11.20
Step-by-step explanation:
The regular price of the T-Shirt is $14 dollars. The discount is 20% off.
20 percent of 14:
14 * 0.2 = 2.80
You would save $2.80.
14 - 2.80 = 11.20
The discount price should be $11.20.
Hope this helps.
Answer:
A total of 15 cups of punch.
Step-by-step explanation:
20% ( or 0.20) of the punch is pineapple juice so if you have 3 cups of this juice, by proportion, you can make 3 / 0.20 = 15 cups
Answer:
its g
Step-by-step explanation:
