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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3y + 2 + 2y + 7 = 10y - 11
5y + 9 = 10y - 11
20 = 5y
4 = y
RS = 14
ST = 15
RT = 29
A family is going to the grocery store, they drive six miles to the store and then stop for five minutes, they then realize that they need gas and drive to a gas station on the way to their house, this takes two minutes. They then drive one mile to a market and stay there for three minutes
I think it’s 4, but I’m not 100%
