The rate of change is given as 10 per day--the number of cans the class plans to bring each day.
After 10 days at that rate, the change will be 10*10 = 100. Since the total after 10 days is 205, we compute the initial value as 205 -100 = 105. This is the number the teacher already had.
cans = 10*days +105
There are 5 sections in total.
She colored 2 sections out of the 5 sections.
As a fraction, that would be 2/5, which is 0.4 as a decimal (2 divided by 5), which is 40%
Answer:
The value of the unit rate is 8
Step-by-step explanation:
we know that
To calculate the unit rate simply divide the first number by the second number
so

Convert mixed number to an improper fraction

substitute in the expression above

Answer:
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Step-by-step explanation:
Given

Required
Determine 
We know that:

This gives:


Collect like terms


Take square roots


By tan identity


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