Let's say Ralph can do the chores in h hours, and Jo in 2h. Then:
1/h+1/2h=1/6
6+3=h
h=9
Ralph takes 9 hours working alone; Jo takes 18 hours
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Answer:
800
Step-by-step explanation:
960 = 2 x 480, so the bacteria will double twice
200 x 2 x 2 = 800
Answer:
C2H5OH(1)+O2(g)-->CO2+3H20(1)
Step-by-step explanation:
Answer:
14/4 or 7/2
Step-by-step explanation:
6 - (-7)
---------
-3 - (-7)
When you subtract a - its really just adding
7 backpacks for $8 = $56
7 lots of paper and pens for $5 each = $35
56 + 35 = $91
The student Council savings decreased by $91.