Answer:
dr/dR= s/(s-r)
b) taking all values positive.. the answer is INCREASING
Step-by-step explanation:
a) R= r*s/(s+r)...
making r subject of formulae ... r = R*s/(s-r)
diff of (r) wrt R= s/(s-r)...
b) from the eqt R=r*s/(s-r)
and increase in r would always lead to an increase in R.. due to the multiplication power of the numerator. also with the condition that all values are positive..
Answer:
the answer is 19.89
Step-by-step explanation:
round it
Answer: $42.6
Step-by-step explanation:
6.5%=0.065 and 0.065*40= 2.6 sales tax which means the total price with the sales tax added would be 40+2.6= $42.6