80% of 210 is equal to 168.
Answer:
<h2>a)4√3</h2>
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
<h3>tips and formulas:</h3>
- tan(60°)=√3
- tan(a)=opp/adj
<h3>let's solve:</h3>
![\sf substitute \: the \: value \: of \: \tan( {60}^{ o} ) : \\ \sqrt{3} = \frac{x}{4}](https://tex.z-dn.net/?f=%20%5Csf%20substitute%20%5C%3A%20the%20%5C%3A%20value%20%5C%3A%20of%20%5C%3A%20%20%5Ctan%28%20%7B60%7D%5E%7B%20o%7D%20%29%20%20%3A%20%20%5C%5C%20%20%5Csqrt%7B3%7D%20%20%3D%20%20%5Cfrac%7Bx%7D%7B4%7D%20)
![\sf cross \: multipication : \\ \therefore \: x = 4 \sqrt{3}](https://tex.z-dn.net/?f=%20%5Csf%20cross%20%5C%3A%20multipication%20%3A%20%20%5C%5C%20%20%5Ctherefore%20%5C%3A%20x%20%3D%204%20%5Csqrt%7B3%7D%20)
<h2>
Explanation:</h2>
Here we know that at 3:17 pm you started to bake the cake. The total revolution the minute hand on the clock makes is:
![\frac{5}{8}+\frac{13}{24}=\frac{7}{6} \ revolutions](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B8%7D%2B%5Cfrac%7B13%7D%7B24%7D%3D%5Cfrac%7B7%7D%7B6%7D%20%5C%20revolutions)
We know that:
![1 \ revolution ----------- 60min \\ \\ 7/6 \ revolutions -----------x](https://tex.z-dn.net/?f=1%20%5C%20revolution%20-----------%2060min%20%5C%5C%20%5C%5C%207%2F6%20%5C%20revolutions%20-----------x)
Solving for x:
![x=\frac{7}{6}\times 60=70 minutes](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B7%7D%7B6%7D%5Ctimes%2060%3D70%20minutes)
So it takes 70 minutes after you put the cake in the oven. But:
![70minutes=1h \ 10min](https://tex.z-dn.net/?f=70minutes%3D1h%20%5C%2010min)
Adding this to the initial time:
![3:17pm+1h \ 10min=4:27pm](https://tex.z-dn.net/?f=3%3A17pm%2B1h%20%5C%2010min%3D4%3A27pm)
Finally, the cake is done at 4:27 pm, option C.
Answer:
Step-by-step explanation:
4a+2(b+5a)+7
4a+2b+10a+7
4a+10a+2b+7
14a+2b+7
Answer:
Sweet and Sour Company
Step-by-step explanation:
$24/4 gallons=$6/gallon
$16/8 quarts (divide by 4 cause there's 4 quarts per gallon)=$8/gallon