If he bikes for 10 miles per hour and 8 miles per hour for the same distance x miles, he went 10 miles per hour for x/10 hours, as Distance = Rate*Time and on the way back he would go for x/8 hours. So then he went 2x distance, in x/8 + x/10 hours. Since x/8 + x/10 = 10x/80 + 8x/80 = 18x/80 = 9x/40, he went 2x miles in 9x/40 hours. this can be converted into a rate with the above equation Distance = Rate*Time, so 2x=(9x/40) * Rate, thus we divide by 9x/40 on both sides to get 80x/9x = Rate, the x cancels out, and we get 80/9 Miles per hour.
If you are trying to subtract 11/12 from 2 then the answer would be 13/12 as a improper fraction and 1 1/12 as a mixed number
Answer:
30 miles in the morning and 60 in the afternoon.
Step-by-step explanation:
15+15= 30 or 2 hours
15+15+15+15= 4 hours (60miles)
<span>
–1, 2.5, –6.25, 15.625, ...
r=-2.5
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</span>
<span>
8, 0.8, 0.08, 0.008, ...
r=0.1
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</span>
I think it’s been awhile but just ur 140/360 then times that by pi then 2 then times r= 12.22
