Answer:
-2.225
Step-by-step explanation:
2/3 or 66.666666...% is the probability of it not landing on blue
420 miles in 7 hours is the same as 60 miles per hour !
Answer:
n = y/(r+s)
Step-by-step explanation:
(rn+sn) / y = 1
Multiply each side by y
(rn+sn) / y *y= 1*y
rn+sn = y
Factor out n
n(r+s) = y
Divide each side by (r+s)
n(r+s) / (r+s) = y/(r+s)
n = y/(r+s)
