Step-by-step explanation:
72 times 108 = 7776 sq inches
to convert inches to yds divide by 36
7776/ 36 = 216 sq yds
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![\diamond\large\blue\textsf{\textbf{\underline{\underline{Given question:-}}}}](https://tex.z-dn.net/?f=%5Cdiamond%5Clarge%5Cblue%5Ctextsf%7B%5Ctextbf%7B%5Cunderline%7B%5Cunderline%7BGiven%20question%3A-%7D%7D%7D%7D)
❖ A number y increased by 5 is at least -21.
![\diamond\large\blue\textsf{\textbf{\underline{\underline{Answer and how to solve:-}}}}](https://tex.z-dn.net/?f=%5Cdiamond%5Clarge%5Cblue%5Ctextsf%7B%5Ctextbf%7B%5Cunderline%7B%5Cunderline%7BAnswer%20and%20how%20to%20solve%3A-%7D%7D%7D%7D)
❖ First, if you come across the word "increased" it means we
"increase" a number, or add something to that number, like
y increased by 5
![\sf{y+5}](https://tex.z-dn.net/?f=%5Csf%7By%2B5%7D)
Now, we are also given that this expression is at least -21, which means it can't be -21; it can be -21 or it can be greater than -21.
So we have
![\longmapsto\sf{y+5\geq -21}}](https://tex.z-dn.net/?f=%5Clongmapsto%5Csf%7By%2B5%5Cgeq%20-21%7D%7D)
<em>Solving for y</em>
<em></em>
- Subtract 5 on both sides:-
![\longmapsto\sf{y\geq -21-5}](https://tex.z-dn.net/?f=%5Clongmapsto%5Csf%7By%5Cgeq%20-21-5%7D)
![\longmapsto\sf{y\geq -26}](https://tex.z-dn.net/?f=%5Clongmapsto%5Csf%7By%5Cgeq%20-26%7D)
So the values of y greater than or equal to -26 will make this inequality true.
<h3>Good luck with your studies.</h3>
![\rule{300}{1}](https://tex.z-dn.net/?f=%5Crule%7B300%7D%7B1%7D)
Answer:
First mechanic: 20 hours
Second mechanic: 15 hours
Step-by-step explanation:
First we create two equations where:
x - hours of first mechanic
y - hours of second mechanic
x+y=35
115x+45y=2975
Then, we multiply both sides of the first equation by 45, and then subtract it from the second equation:
45x+45y=1575
|115x+45y=2975
-|45x+45y = 1575
70x = 1400
x=20 hours
Now we know for how many hours the first mechanic worked. Now we just need to subtract that from the combined total to find the second mechanic's hours:
35-20=15 hours
Answer:the radius of a cone is the radius of its circular base. You can find a radius through its volume and height. Multiply the volume by 3. For example, the volume is 20.