What is the constant of proportionality for the relationship shown in the table? x 2 4 6 8 y 1 2 3 4
1 answer:
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Answer:
Step-by-step explanation:
Given
Length of Pieces = 50cm
Number of Pieces = w
Left over = 20cm
Required
Determine the length of the wood
Start by multiplying the number of pieces by the length of each pieces
Lastly, add the leftover to get the actual length of the wood
Substitute 50w for Result and 20 for Leftover
<em>Hence, the length of the wood is 50w + 20</em>
Answer:
The 98% confidence interval for the mean purchases of all customers is ($37.40, $61.74).
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 49.57 - 12.17 = $37.40.
The upper end of the interval is the mean added to M. So it is 49.57 + 12.17 = $61.74.
The 98% confidence interval for the mean purchases of all customers is ($37.40, $61.74).
Answer:
$91.75
Step-by-step explanation:
Jessica is paid:
- $0.45 per basket for the first 100 baskets picked;
- $0.50 per basket for all baskets over 100 picked.
1st day:
Jessica picked 65 baskets of oranges (less than 100)
Jessica is paid
2nd day:
Jessica picked 135 baskets of oranges (35 more than 100)
Jessica is paid
Altogether Jessica is paid