Either I've made a miscalculation... or none of these are correct...
1.7 in it's simplest form is 17/10.
So... neither A, B, C, or D is correct.
<h3>
Answer: </h3><h3>Fred has <u>20 students</u> and Lee has <u>22 students</u></h3>
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Work Shown:
L = number of students in Lee's class
F = number of students in Fred's class
Lee has 1.1 times as many students compared to Fred
This means we have this equation
L = 1.1F
Whatever the value of F is, we multiply that by 1.1 to get the value of L
The two amounts L and F add to 42 total students
L+F = 42
1.1F + F = 42 .... replace L with 1.1F
2.1F = 42
F = 42/(2.1)
F = 20 .... Fred has 20 students
L = 1.1*F
L = 1.1*20
L = 22 .... Lee has 22 students
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Check:
L+F = 22+20 = 42
this confirms the answer
Answer:
Acute Angle
Step-by-step explanation:
Answer:
The sample size required is 910.
Step-by-step explanation:
The confidence interval for population proportion is:
The margin of error is:
Given:
The critical value of <em>z</em> for 90% confidence level is:
*Use a standard normal table.
Compute the sample size required as follows:
Thus, the sample size required is 910.
Answer:
5/36
Step-by-step explanation:
number cubes are rolled = dies that have 6 faces with numbers 1,2,3,4,5,6
Getting 5 or 4 as the product of the two numbers.
How many ways we can get 5 or 4 as a product?
5 ways : 1*4, 1*5, 2*2, 4*1, and 5*1
All possible outcomes are 36 (see table)
P = ways to get 4 or 5 as a product/ all possible ways = 5/36
