Millie the waitress gets $2.85 per hour plus tips at her job. The formula is

Pay = 2.85 x hours + tips

= 2.85h + t

A cost of a taxi ride is calculated by adding a fixed rate to the product of a charge per tenth of a mile times the distance traveled. C = f + rd

Simple interest on a bank loan can be calculated by multiplying the principal times the interest times the time.

I = prt

Use the above formulas to answer these questions.

Millie worked 8 hours and got $46 in tips. What is her pay?

 

h h=8 , t = 46

A cab ride cost $1.25 fixed cost. It has a rate of $0.15 per tenth of a mile. How much will a ride of 36 tenths of mile cost?

 

f = 1.25, r = 0.15, d =36

The interest rate on a loan is 0.04. The time of the loan is 5 years. The amount or principal is $2000. What is the interest?

 

p = 2000, r = 0.04, t = 5

 

 

 

 

 

 

 

 


 
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