If A=ab and B=ba then A-B=ab-ba which means 10a+b-10b-a=9a-9b=9(a-b)
so A-B is divisible by 9
Answer:
students
Step-by-step explanation:
Last year number of students 
Increase in next year 

of 
So total increase in next year 
Hence total number of students next year = number of students last year
increase

Divide each term by <span>4</span> and simplify.Tap for less steps...Divide each term in <span><span><span>4x</span>=y</span><span><span>4x</span>=y</span></span> by <span>44</span>.<span><span><span><span>4x</span>4</span>=<span>y4</span></span><span><span><span>4x</span>4</span>=<span>y4</span></span></span>Reduce the expression by cancelling the common factors.So your answer would be x=y over 4
Answer:
Randy: 38.25
Step-by-step explanation:
J 4×12.75= 51
R 3×12.75= 38.25
K 1×12.75= 12.75
51+38.25+12.75=102