Suppose y varies directly with x and y = 72 when x = 6. What direct variation equation relates x and y? What is the value of y w
hen x = 102
1 answer:
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A set is simply the group of numbers.
- <em>The set of M and N are: </em>
<em> and </em>
<em>.</em>
- <em>The set of M n N is: </em>
<em>.</em>
- <em>The set of M u N is: </em>
<em />
<u>(a) The set of M and N</u>
Given that:
M = squares of integers less than 100
N = Positive odd numbers less than 15
So, we have:
<u>(b) M n N and M u N</u>
M n N is the set of common elements between sets M and N.
So, we have:
M u N is the set of all elements in sets M and N.
So, we have:
Read more about sets at:
Answer:
Layota
$47.5
Step-by-step explanation:
Let number of hours = x
Given that:
Oscar's charges :
First hour = $25
Additional hours = $15
Thus :
Total charge : 25 + 15(x - 1)
The piece wise equation given for Layota's charge rate :
First 3 hours = $30
Next 3 hours = $20
Hours greater Than 6 = $10
If total hours ; x = 5.5 hours
Oscar :
$25 + $15(5.5 - 1)
$25 + $15(4.5)
$25 + $67.5
= $92.5
Layota:
First 3 hours :
$30 * 3 = $90
Hours left :
$20 * (5.5 - 3)
$20 * 2.5 = 50
Total = $90 + $50 = $140
Layota charges more : 140 > 92.5
Difference :
$140 - $92.5
= $47.5
