The correct answer would be (C.) x>90
A+b=7 and ab=10 the answer is a-5 and b-2 5+2=7 and 5*2=10
Step-by-step explanation:
the slower plane traveled x miles in 4 hours.
the faster plane traveled x + 4×80 = x + 320 miles in 4 hours.
so,
x + x + 320 = 3800 miles
2x =3480 miles
x =1740 miles (in 4 hours) .
that means the slower plane's speed was 435 mph.
and the faster plane's speed was 435 + 80 = 515 mph.
Answer:
Step-by-step explanation:
200ft (1mile/5,280ft) 60ft/1hr 200×60/5,280 = 2.27272727273
and round it to the2 decimal is 2.27
589.1 is the greater answer.