Answer:
Step-by-step explanation:
He could use either. It would probably be better to use one that already has a variable without a coefficient. which one has that? Let me know if that doesn't make sense.
A) 8 cents
Explanation
Step 1
find the rate
cost
hence
total cost = time*rate*consume
now, to convert from dollars to cents, multply by 100
I hope this helps you
Base in your question the family plan cost is $55 per month so it means it has a minimum of payment of $55 per month. The variable X is represented as the number of cell phone minutes is used above the plan and Y is the amount of megabytes used above the plan. The best answer to your question is letter C.
Answer:
Calculate Principal, Interest Rate, Time or Interest. ... You received $72 in interest after 3 years. ... where I is interest, P is total principal, i is rate of interest per year, and t is total time in years. In this example I = $72, i = 4% and t = 3 years, so ...
Step-by-step explanation:
Given 17 books.
Total 56 b<span>ooks.
How many books were in her collection before her teachers donation?
</span>
First lets write an equation:
b = books before
17 + b = 56
Lets solve for b:
17 + b = 56
Inverse Operation:
56 - 17 = b
56 - 17 = 39
b = 39
Check:-
17 + b = 56
17 + 39 = ?
17 + 39 = 56
Correct!
There were 39 books in her collection before her teacher donated her books.
The equation is: 17 + b = 56.
b = 39