Answer:
Step-by-step explanation:
Let the ages be r and m
<u>We have:</u>
<u>Substitute m in the second equation and solve for r:</u>
- m = 117 - r
- 5r = 9 + 3( 117 - r)
- 5r = 9 + 351 - 3r
- 5r + 3r = 360
- 8r = 360
- r = 360/8
- r = 45
<u>Then m is</u>
 
        
             
        
        
        
For this case, the first thing you should know is:
 d: v * t
 Where,
 d: distance
 v: speed
 t: time
 To go to school by bus we have:
 d = 45 * t
 To return from school we have:
 d = 2.5 * (1-t)
 how the distance is the same:45 * t = 2.5 * (1-t)
 Answer:
 the equation that will help find the time it takes chelsea to get to school on the bus is:
 45 * t = 2.5 * (1-t)
 Note: the equation will have one solution. 
        
             
        
        
        
Answer:
54$
Step-by-step explanation:
-  To get the tax times the number to the percentage 
- 50 * 8% = 4
- 50 + 4 = 54 $
 
        
             
        
        
        
The <u>correct answer</u> is:
The basketball player's vertebrae may be bigger than the gymnast's.
Explanation:
There are several factors that influence height; for one, the length of the legs affects one's height.
Additionally, however, if someone has bigger vertebrae, then they would be taller than another person.