So we are using the denominator 20.
1/2 of 20 would be 10.
So, out of 20 we multiply it by 10 since it is our numerator.
Now, we have converted it to 100/200.
Freshman : 100 students
Sophomores : 10 students
Juniors : 20 students
Seniors : 70 students
Final Answer: 
Steps/Reasons/Explanation:
Question: Solve 
.
<u>Step 1</u>: Divide both sides by 
.
<u>Step 2</u>: Simplify 
to 
.
~I hope I helped you :)~
Let x = speed and y = distance
y = x * 45
y = (x - 4) * 70
45x = 70x - 280
-25x = -280
x = 11.2
Put it back into the first equation:
y = 11.2 x 45
y = 504miles
Hope this helps! Any questions let me know :)
Answer:
he spent $16.5
Step-by-step explanation:
5:9 is just 5/9
Hope this helps!
