Problema Solution
Marsha buys x pens at .70 per pen and one pencil for .10. Write a function that gives the total amount Marsha spends? How much does she spend on 5 pens? How about if she buys 8 pens?
Answer provided by our tutors
let 'y' represent the total amount spent for x pens and 1 pencil
y = 0.70x + 0.10
How much does she spend on 5 pens?
y = 0.70*5
y = $3.50
How about if she buys 8 pens?
y = 0.70*8
y = $5.60