You set up your long division and you can multiply 4x9 to get 36 and 36-36=0 your welcome!
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.
The y-intercept is 4.
If you have x-4y=-16, in slope intercept form it is y=1/4x+4.
Answer:
Step-by-step explanation:
21
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