Exercise 24 Page 158

We want to find the total cost of the trampoline. Let's start by calculating the dollar amount of the sales tax. We can do this by using the percent equation. part = percent * whole We are given that the trampoline costs $ 220 plus 6.25 % sales tax. Let t represent the dollar amount of the tax. t = 6.25 % * $ 220Before solving the equation we got, we need to write the percent as a decimal. We can do this by ignoring the percent symbol and moving the decimal point two places to the left.

We got that 6.25 % is equal to 0.0625. t = 6.25 % * $ 220 [0.3em] ⇓ [0.3em] t = 0.0625 * $ 220 Finally, we will solve the equation for t. For simplicity, we will omit the dollar symbol.

We found that t= 13.75 is a solution to the equation. This means that the dollar amount of the tax is $ 13.75. Now we can calculate the total cost of the trampoline, which is the regular price of the trampoline plus the tax. Total cost = $ 220 + $ 13.75 = $ 233.75 The total cost of the trampoline is $ 233.75, which means that the correct option is H.