108=3(b-s)
36=b-s
s=b-36
...
108=2(b+s), and using s found above gives us:
54=b+b-36
54=2b-36
2b=90
b=45, and since s=b-36, s=9
So the boat's speed is 45mph and the stream's speed is 9mph
3/5 x 10= 6 miles because coach runs 10 times what you run
Answer:
Step-by-step explanation:
I can't really do the "show your work" part as well on a computer, but I'll do my best.
(a) $14.94 (2.49*6=14.94)
(b) $18.75 (150/8=18.75)
(c) $17.59 ($164.94 in total. So 182.53-164.94=17.59)
Hope this helps.
100 pens cost x dollars.
Therefore 1 pen costs
x/100 dollars/pen
50 cents = 0.5 dollars. It can purchase
(0.5 dollars) / (x/100 dollars/pen)
= 50/x dollars
Answer: 50 cents can purchase 50/x pens