Answer:
<em>The sea cow can stay under water for 16 minutes.</em>
Step-by-step explanation:
A hippopotamus can stay under water for 15 minutes.
A sea cow can stay under water 
minutes and this is 11 minutes longer than one-third the time a hippopotamus can.
So, "11 minutes longer than one-third the time a hippopotamus can" means: ![[\frac{1}{3}(15)+11] minutes](https://tex.z-dn.net/?f=%5B%5Cfrac%7B1%7D%7B3%7D%2815%29%2B11%5D%20minutes)
Thus, the equation will be: 
Now, solving the above equation, we will get.........
So, the sea cow can stay under water for 16 minutes.
A. 5
20000- 18050 = 1950
1950/2 = 975
975/20000 = .48 (round to 5)
<span><span><span>Angle A = </span>62°
</span><span><span>Angle B = </span>90°
</span><span><span>Side a = </span><span>45
The length of the board is side b
</span></span></span><span><span>Use the Law of Sines to find side b.</span><span>
b / sin(B) = a / sin(A)</span><span>
b / sin(90°) = 45 / sin(62°)</span><span>
b = (sin(90°) x 45) / sin(62°)</span><span>
b = 50.966
Rounded to the nearest inch is 51 inches.
Hope this helps!</span></span>
Simplifying
-1x + -7 = 5x + -11 + -7x
Reorder the terms
-7 + -1x = 5x + -11 + -7x
Reorder the terms
-7 + -1x = -11 + 5x + -7x
Combine like terms
5x + -7x = -2x
-7 + -1x = -11 + -2x
Solving
-7 + -1x = -11 + -2x
