<span>3x-5=5x+11
subtract 3x to both sides
</span>3x-5 - 3x =5x+11 - 3x
<span>simplify
-5 = 2x +11
answer is </span><span>D. -5=2x+11</span>
Answer:
87 or 88
Step-by-step explanation:
86 is 98% of 87.755102
So, the number of problems must have been 87 or 88
Let's give some distances
100 up 100 flat 100 down meters
then return 100 up 100 flat 100 down
time required (distance/rate = time ) 200/100 + 200/120 + 200 / 150 = 5 hr
distance 600
distance / time = average speed = 600/5 = 120 m/s
