Interactive Practice Homework Tutor

🧮 Understanding Rate Concepts

Lesson 15 - Work through each step!

A B
A Find each rate (min per puzzle)

Maya's Number Line:

Minutes:
0 30
Puzzles:
0 1 5
Maya: 30 ÷ 5 = min/puzzle

Amy's Number Line:

Minutes:
0 28
Puzzles:
0 1 4
Amy: 28 ÷ 4 = min/puzzle
B Who finishes first? 🔒 Complete A first

If both solve 20 puzzles:

Maya
? min
Amy
? min

Each bar = 1 puzzle's time

Winner:
A B C
A Find gallons per minute
Gallons:
0 ? 36
Minutes:
0 1 3
36 ÷ 3 = gal/min
B Build table for min per gallon 🔒
Minutes Gallons Op
3 36 Start
÷3
÷12
Answer: min/gal
C How many gallons in 10 min? 🔒

? gal/min × 10 buckets:

Click to fill!

? × 10 = gallons
A B
A Find miles per hour
Miles:
0 ? 216
Hours:
0 1 4
216 ÷ 4 = mph
B Can Max still make it? 🔒
Step 1: Total stop time
2 × 10 = min stopped
Step 2: Miles per minute (4 hr = 240 min)
216 ÷ 240 = mi/min
Step 3: Miles lost = (mi/min) × (stop time)
? × ? = mi lost
Step 4: Verdict

216 − ? = ? mi. Needs 216.

Make it?
(for your tutor)