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Checkpoint: proportional relationships — Homework
Complete this mixed review covering proportional relationships, percents, and scale drawings.
- 1.Table: x = 3, 4, 7 and y = 13.5, 18, 31.5. Is it proportional? Find k if so.
- 2.A price falls from $120 to $90. Find the percent decrease.
- 3.P = $900, r = 3%, t = 6 years. Find the total amount.
- 4.Scale: 1 cm = 15 km. Two cities are 5.5 cm apart on the map. Find the actual distance.
- 5.Explain how you would decide whether a table is proportional, in your own words.
🌲 Homeschool of the FutureSeventh Grade · Math · week 9 homework