Answer:
# of students = 393, # of non-students = 104
Step-by-step explanation:
We have a system of equations (# of students = s, # of non-students = n):
1. Total people attended: s + n = 497
2. Total earnings: 2.5s + 4.5n = 1450.5
We can <em>change the first equation to n = 497 - s</em>, and <em>substitute that into the other equation: 2.5s + 4.5(497 - s) = 1450.5</em>
Expand: 2.5s + 2236.5 - 4.5s = 1450.5
Subtract: 2.5s - 4.5s = 1450.5 - 2236.5
Simplify: -2s = -786
Divide: s = 393
Plug into first equation: 393 + n = 497
Subtract: n = 104
Answer:
1. 9
2. 6√(2)/8.49
3. √(12)/3.46
4. √(50)/7.07
5. 1584
Step-by-step explanation:
Use pythagorean theorem for all of these triangles which is a^2+b^2 = c^2, for the problems with writing, just break it down and draw out a triangle and solve it from there and plug in the right numbers and solve
That means that x can equal both 5 and -5
Answer:
<em>Not true. Actually, 1 2/3 equals 5/3</em>
Step-by-step explanation:
<h2><u><em>
Plz mark as brainlest!</em></u></h2>
4/6>2/6. If you want the in simplest form, it's 2/3.
