Question

(a) lena took a trip last year. she drove 109.5 kilometers (km) in 3 hours at a constant speed. this year, lena considers taking a 7 hour trip, driving the same distance each hour as she did during last year’s trip. show her 7 hour trip on the diagram below. distance driven each hour: km 2 hours 1 hour 1 hour km km

Explanation:

Step1: Calculate hourly distance

$\frac{109.5}{3} = 36.5$

Step2: Define per-hour diagram value

Each 1-hour block = $36.5$ km

Step3: Build 7-hour diagram

Create 7 total 1-hour blocks, each labeled "1 hour" above and "$36.5$ km" below. Group 2 blocks as shown, plus 5 additional identical blocks.

Answer:

Distance driven each hour: $36.5$ km

Diagram setup:

• 7 separate 1-hour sections (each with "1 hour" at the top, "$36.5$ km" at the bottom)
• Keep the existing 2-hour grouped section (two 1-hour blocks labeled as such), and add 5 more identical 1-hour blocks to reach the total 7 hours.