mr. and mrs. dobrosky are eating at friendly's. their bill is $24.79 and they are leaving a 15% tip. how much did they spend on dinner and the tip?

Tip: $3.70

Total: $28.49

Step-by-step explanation:

1. Finding the tip:

a. tip = total cost * rate of tip

or you could do it as a proportion, which would be

b. tip percent/100 = tip/total cost

use cross products to get the tip, then add it to the total price.

I hope this helped.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.