Answer:
I know im late but the answer is 275 I just took the test on k-12
Step-by-step explanation:
Answer:
10000 cows.
Step-by-step explanation:
Remainder before the 10% loss: (7650/9) x 10 = 8500
Total before any losses : (8500/85) x 100 = 10000
Answer:
see explanation
Step-by-step explanation:
A
The area (A) of a circle is calculated as
A = πr² ( r is the radius )
Here diameter = 12 , then radius = 12 ÷ 2 = 6 , then
A = π × 6² = 3.14 × 36 = 113.04 m²
B
The circumference (C) of a circle is calculated as
C = 2πr ( r is the radius )
Here C = 28.26 , then
2πr = 28.26 ( divide both sides by 2π )
r = 
= 
= 4.5 in
Answer:
1. one quarter and one nickel
2. two dimes and two nickels
3. one dime, two nickels, and ten pennies
Step-by-step explanation:
(Assuming you mean U.S.A. money)
30% of a dollar equals 30 cents. Each of the above equals 30 cents.
From the given mean and margin of error, the 99% confidence interval for the mean amount of money spent on lunch per week for all students is:
[$19.5, $22.5].
<h3>How to calculate a confidence interval given the sample mean and the margin of error?</h3>
The confidence interval is given by the sample mean plus/minus the margin of error, hence:
- The lower bound is the sample mean subtracted by the margin of error.
- The upper bound is the sample mean added to the margin of error.
For this problem, we have that:
- The sample mean is of $21.
- The margin of error is of $1.50.
Hence the bounds are given as follows:
- Lower bound: 21 - 1.50 = $19.50.
- Upper bound: 21 + 1.50 = $22.50.
Hence the interval is [$19.50, $22.50].
More can be learned about confidence intervals at brainly.com/question/25890103
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