a = 46c....for c
a/46 = c
322 = 46c
322/46 = c
7 = c.....7 circuits are required
For the answer to the question above,
and we are told that there are "four times as many quarters as nickels"
this translates to
q = 4n
0.05n + 0.25q = 2.10
and
q = 4n
are your two equations that could be used to solve this problem
if you would like to know how many nickels and how many quarters there are, plug in q = 4n into the first equation and get
0.05n + 0.25(4n) = 2.10
then I would stop here
because I didn't see the choices. So the answer is 4n
Answer:
0.75
Step-by-step explanation:
Green = 20 - 3 - 2 - 5 = 10
Yellow or green = 5+10 = 15
P(yellow or green) = 15/20
= 3/4 = 0.75
