Add the ratio together: 5:4 becomes 5+4 = 9
divide the amount by 9:
54 / 9 = 6
multiply 6 by both 5 and 4
6 *5 = 30
6 * 4 = 24
30 and 24 are two amounts
Answer:
Step-by-step explanation:
a 12 ounce bag = 64 marbles
So first you want to find out how much each marble weighs. To do this divide 12 ounces by 64.
1 marble =
To find the weight of 160 marbles, you just multiply the weight of 1 marble by 160.
160 marbles = × = 30 ounces.
Answer:
B
Step-by-step explanation:
V = (4/3) pi r^3
V = 1.333 * 3.14 * 11^3
11^3 = 1331
V = 1.333 * 3.14 * 1331
V = 5572
Sub x values for x
0,1,2
y=3(0)+1=1
y=3(1)+1=4
y=3(2)+1=7
y=3(3)+1=10
table
x=0,1,2,3
y=1,4,7,10
Answer:
64
Step-by-step explanation:
Given that an advisor to the mayor of a large city wants to estimate, within 3 minutes, the mean travel time to work for all employees who work within the city limits.
Let X be the random variable denoting the time for employees to travel within city limit
Std dev of X
For 95% confidence interval Z critical 1.96 is used because population std dev is known
Margin of error
i.e.
where n is the desired sample size.
Simplify to get
Hence atleast 64 employees should he poll