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%
1. The first 10 multiples of 13 are 13, 26, 39, 52, 65, 78, 91, 104, 117, and 130.
2. x - 5
3. x + 80
Answer: c.) Sales tax varies by state, so you can travel to a state with a lower tax rate and make your purchase there.
Step-by-step explanation:
Sales tax rates vary significantly from state to state, so you can save money if you know what state has a lower sales tax rate, so you can travel to that state and make your purchase there.
There is a list of states with lower sales tax rates:
1. Alaska 1.43% Sales tax rates
2. Hawaii 4.41% Sales tax rates
3. Wyoming 5.36% Sales tax rates
4. Wisconsin 5.44% Sales tax rates
5. Maine 5.50% Sales tax rates
6. Virginia 5.65% Sales tax rates
<h2><em>Spymore</em></h2>
Step-by-step explanation:
<u>John</u>
1hour=x
6x=150
X=150÷6=25
John earns 25 dollars per hour
<u>Peter</u>
<u>1hour=x </u>
<u>8</u><u>x=</u><u>160</u>
<u>X=</u><u>160</u><u>÷</u><u>8</u><u>=</u><u>20</u><u> </u>
- Peter earns less than <u>John</u><u> </u>
Answer: 267.947 (or 267.95) inches^3
Step-by-step explanation:
The formula for the volume of a sphere is
.
To find your radius (r), divide the diameter of 8 inches by 2. <em>The radius is 4 inches.</em>
Plug in your numbers to the volume equation to get
. The first step is to cube 4 (4*4*4) to get <em>64</em>. Now your equation is
.
Multiply 3.14 and 64 to get <em>200.96</em>. The equation is now
or
.
Multiply the numerators (4 * 200.96) and denominators (1 * 3) to get a final equation of
.
Finally, divide 803.84 by 3 to get the final answer of 267.947 in^3.