Answer:
cost of 1 inch of wire= 22/66= 0.33
cost of 18 inch of wire= 0.33 x 18= 6
$1= 100 cents
$6 in cents= 6 x 100= 600 cents
X-0.20x=5.56
Solve for x
So the original price is
X=6.95
All you have to do is to move the decimal point 1 place to the right and then append E1 to the result:
0.770000 = <span>7.70000E1</span>
Answer:
Jones(20%), Smiths(30%)
Step-by-step explanation:
The relative dispersion of a data set is the ratio of its standard deviation to its arithmetic mean.
Mr. and Mrs. Jones' neighborhood mean family income is $45,000 with a standard deviation of $9,000.
Their Relative Dispersion is given as:
Standard Deviation: Mean
9000:45000
1:5
Expressed as a Percentage: (1/5)x100=20%
The Relative Dispersion of the family incomes in Mr. and Mrs. Jones' neighborhood is 20%
Mr. and Mrs. Smith's neighborhood mean family income is $100,000 and the standard deviation is $30,000.
Their Relative Dispersion is given as:
Standard Deviation: Mean
30000:100000
3:10
Expressed as a Percentage: (3/10)x100=30%
The Relative Dispersion of the family incomes in Mr. and Mrs. Smith's neighborhood is 30%
