17 because 4 x 1.5 = 6, 50 / 1.5 = 33.33
        
             
        
        
        
Answer: 5 : 3
Step-by-step explanation:
The ratio of shirts to pants can be shown by putting the number if shirts and pants in the following manner:
Number of shirts       :        Number of pants 
20                               :                   12
Then you have to take this to the lowest term. 4 is a factor of both numbers so when divided by 4 we get:
= 5 : 3
This is the ratio. 
 
        
             
        
        
        
Answer:
P = 42.84  cm
Step-by-step explanation:
A half-circle is joined to an equilateral triangle with side lengths of 12 units. 
We need to find the perimeter of the resulting shape.
The perimeter of the half cirle is πr.
The diameter of the circle is 12. It means radius is 6 units. 
An equilateral triangle has 3 equal sides. So, perimeter of the triangle is given by :
P = πr  + 12 +12
= 3.14(6) + 24
= 42.84  cm
Hence, the perimeter of the resulting shape is 42.84  cm.
 
        
             
        
        
        
Answer: P * ( 1 + 7%)
Step-by-step explanation:
You included no options but the expression should go something like this:
Pn = P * ( 1 + 7%)
Where Pn is the new price
P is the current price
<em>The above formula will show the new price given the current price. </em>
 
        
             
        
        
        
"He starts both trains at the same time. Train A returns to its starting point every 12 seconds and Train B returns to its starting point every 9 seconds". Basically, what you need to do is find the least common multiple. The least common multiple of 12 and 9 is 36, so the least amount of time, in seconds, that both trains will arrive at the starting points at the same time is 36 seconds.