the total of your dinner bill plus tip is $19.00. You left a $3.00.
(a) The $3.00 tip is what percent of the dinner bill?
(b) The percent in part (a) is you customary tip percentage. Write an expression for the total of a dinner bill plus tip, for any d dinner bill.

First, convert the 16% to an actual number that can be used in a calculation. For percents,this is always done by simply dividing the percent (in this case 16%) by 100%.So, the conversational term "16%" becomes 16% / 100% = 0.16 in terms of a real mathematical number.

Second, you need to find out what 16% of your $19 meal cost is.This is always done by multiplying 0.16 by $19.00, or

0.16 x $19.00=$3.04.

So, the amount of tip you are going to leave is $3.04.

B. D=dinner bill. X= meal price, T=tip.

X+T=D or, D=X+T.

the total of your dinner bill plus tip is $19.00. You left a $3.00. (a) The $3.00 tip is what percent of the dinner bill? (b) The percent in part (a) is you customary tip percentage. Write an expression for the total of a dinner bill plus tip, for any d dinner bill.

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the total of your dinner bill plus tip is $19.00. You left a $3.00.
(a) The $3.00 tip is what percent of the dinner bill?
(b) The percent in part (a) is you customary tip percentage. Write an expression for the total of a dinner bill plus tip, for any d dinner bill.