20000 times a million thousand it equal 20000000000
Amy can wash 75 cars in 12 hours, Roger can wash 64 cars in 12 hours.
so therefore 75+64 =139
together they can wash 139 cars in 12 hours
The solution would be B) (18,-20)
Answer:
don't no<em><u> </u></em><em><u>for</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>he</u></em><em><u> </u></em><em><u>app</u></em><em><u> </u></em><em><u>vapru</u></em><em><u> </u></em><em><u>naga</u></em><em><u> </u></em><em><u>he</u></em><em><u> </u></em><em><u>app</u></em><em><u> </u></em><em><u>bakwas</u></em><em><u> </u></em><em><u>ahe</u></em>
at maximum. dt/dh=0
if you differentiate you will get
-32t=-100
t=3.125