Ms. Sanchez teaches computer programming. Each of her students is able to write an average of 4 lines of code every 20 minutes. Ms. Markus also teaches computer programming. Each of her students is able to write an average of 5 lines of code every 30 minutes, as shown in the diagram.

A double number line diagram for Ms. Markus' class is shown. The top number line shows hours in one half increments from one half to five halves. The bottom number line shows lines of code in increments of five from five to twenty-five.

Which class, Ms. Markus’ class or Ms. Sanchez’s class, writes code faster? Explain.

Drag the answers to the boxes to correctly complete the sentence.

class is faster, because 20 lines of code in Response area hours is faster than 20 lines of code in hours.