I'm assuming that you meant to write 'two 100-w per hour light bulbs used a total of 400w. how many hours did the bulbs run'
so each used 100w per hour and there are 2 light bulbs so in 1 hour 200w is used
200wh times x hour=200wx=400w
divide both sides by 200w
x=2
they ran for 2 hours
Answer:
2384.83 cm³
Step-by-step explanation:
Volume = πr² * h
Volume = 3.14 * 7² * 15.5
Volume = 3.14 * 49 * 15.5
Volume = 2384.83
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-Chetan K
Answer:
25
Step-by-step explanation:
You wanna subject the original stack of hay to the stack of hay now
63-38=25
So he stored 25 bales
28 divided by 3658 is .007654456