Which expression is equivalent to −30+(−40)+(−70) ?
1 answer:
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Hello
here is a solution
here is a solution
The unit rate is 0.25 kilograms per year.
Step-by-step explanation:
Lets define unit rate first
Unit rate is the change in quantity per unit time.
Given
Weight = w = 5 kg
Time = t = 20 years
So,
Hence,
The unit rate is 0.25 kilograms per year.
Keywords: Unit rate, rate of change
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