Answer: 188 are first year students, while
282 are not
Step-by-step explanation:
40% of 470=188
60% of 470=282
C. 1/root2
Based on the information, the hypotenuse will be 6root2 because it is a 45, 45, 90 triangle. The two legs will be 6. Using SOH CAH TOA, we know that for cosine, it will be adjacent/hypotenuse. The adjacent side is 6 and the hypotenuse is 6root2. The result will be (6)/(6root2). After simplifying, we get
1/root2.
This might help explain how to do a very similar problem.... http://www.mathopenref.com/constbisectline.html
<em>Train A = 214
</em>
<em>
Train B = 86</em>
<em>Hope I helped!!! ^^</em>
<em>_______________</em>
<em>列車A = 214
</em>
<em>
列車B = 86
</em>
<em>私が助けてくれたらいいのに！^ ^</em>
Answer:
The speed of the boat in still water is 18 mph.
The speed of the current is 2 mph
Step-by-step explanation:
Let x represent the speed of the boat in still water.
Let y represent the speed of the current.
When the boat goes against the current, the speed is 16 mph. Assuming it traveled against the current while going upstream, its total speed would be (x - y) mph. It means that
x - y = 16 (equation 1)
Going downstream, the boat averages 20 mph. Assuming it traveled with the current, its total speed would be (x + y) mph. It means that
x + y = 20 (equation 2)
Adding both equations, it becomes
2x = 36
x = 36/2
x = 18 mph
Substituting x = 18 into equation 1, it becomes
18 - y = 16
y = 18 - 16
y = 2 mph
