5×20%=100% so 1360mg is 80% of the daily requirement. The total requirement is 1360/0.8=13600/8=1700 mg.
If we take the value of t to be 15 and then we perform the calculations of 2 times t divided by 3, we can express it all by two equations substituting the value given for t like so:
t = 15
2t/3 = 2(15)/3 = 30/3 = 10
This is a basic subtracting problem.
$84.00 minus $29.00
Debit means it's been taken out of the bank account, so subtracted.
After subtracting the balance will be $55.00.
You can double check your work by adding 55 + 29 = 84.
