Word Problem: cost

Directions: Use the Design Recipe to write a function ‘cost’, which takes in the number of glasses sold and calculates the total cost of materials if each glass costs $.30 to make.

Contract and Purpose Statement

Every contract has three parts…​

; MMMM:MMMMMMM->MMMMMM

; M

Examples

Write some examples, then circle and label what changes…​

(EXAMPLE (MMMM MM)MMMMMMMMM)

(EXAMPLE (MMMM MM)MMMMMMMMM)

Definition

Write the definition, giving variable names to all your input values…​

(define (MMMM MMMMMMMM)

MMMMMMMMMMMMMMMMM)

These materials were developed partly through support of the National Science Foundation, (awards 1042210, 1535276, 1648684, and 1738598). CCbadge BS:Games by Jen Poole, Emmanuel Schanzer, Ed Campos Jr, and Dorai Sitaram is licensed under a Creative Commons 4.0 Unported License. Based on a work at www.BootstrapWorld.org. Permissions beyond the scope of this license may be available by contacting schanzer@BootstrapWorld.org.