Answer:
2.5
Step-by-step explanation:
5/2=2.5
Answer:
347
Step-by-step explanation:
I don't know how you want me to answer this, so I just answered with the exact value.
Answer:
y = 4/5 x - 2 1/5
Step-by-step explanation:
1. Find the slope:
1 - 5/ 4 - 9 = 4/5 = m
2. Find b by plugging in the m and one of the points given into y = mx + b
1 = 4/5 ( 4) + b
1 = 16/5 + b
-2 1/5 = b
3. Write the equation using the m and the b you just found
y = 4/5 x - 2 1/5
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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
I believe the answer to your problem is B
