Answer:
(3 , 8)
Step-by-step explanation:
Answer:
the answer is x1 = -4- square root of 23 x2= -4+ square root of 23
Answer: 315 miles
Step-by-step explanation:
let onward speed = x mph, then distance = 7x
return speed = (x+18) mph, (same) distance = 5(x+18)
equating the two,
7x = 5(x+18)
2x = 90 ==> x = 45 mph
so distance = 7*45 = 315 miles
Answer:
y=45-3x, where x=# of days, y=number of hours left, and 45=total # of hours.
Step-by-step explanation:
hours left= total - hours/day
we want y, so:
y=45-3x is the right answer
