Simple Interest Formulas and Calculations:
Calculate Total Amount Accrued (Principal + Interest), solve for A. A = P(1 + rt)
Calculate Principal Amount, solve for P. P = A / (1 + rt)
Calculate rate of interest in decimal, solve for r. r = (1/t)(A/P - 1)
Calculate rate of interest in percent. ...
Calculate time, solve for t.
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X is equal to 2. The steps are listed below :)
Answer:
mabey 4 i'm thinking
Step-by-step explanation:
It's b -40 Casey spends 50
Kelly spends 50- 50x0.10 (5)= 45
Megan spends 45-5 =(40)