Answer:
5.3x^3+11.1x+0.8
Step-by-step explanation:
Add ones with similar variables
5.3x^3+11.1x+0.8
Answer:
?
Step-by-step explanation:
Recall your d = rt, distance = rate * time
we know the total trip was 352miles, so, let's say he was going for the first 2hrs at "r" speed, he went "d" miles, then he slowed down to "r - 20" and went 6 more hours, since the total trip is 352 miles, the 6hrs take the slack from 352 - d, and that's how many miles he covered on those 6hours

solve for "r".
Answer:
x+5
Step-by-step explanation:
Since you don't know how much Joe weighs, you can express his weight as x. Then, you add on 5 because you have 5 more lbs than joe (which is x).
Answer:
54
Step-by-step explanation:
6/100 = x/90
6×90=540
540/100=54