Math 1 · Unit 7 · Lesson 3 · part 5 of 5
Practice Problems
Try them, get help one step at a time, then print how it went.
Practice: try it, then get help one step at a time
Percent to factor, factor to percent, and reading a and b in a story. Hint gives a nudge, Show next step shows one worked step at a time, Reveal answer checks, and Hide help / start over clears the card. Always start from 100%.
My results
Finished the practice? Print a page that shows each question, what you typed or chose, the correct answer, and how it went. Good for showing a teacher or keeping in a folder.
Exit ticket
On paper or an index card. Use the math word and the plain-English word.
- Why does b = 0.8 make the curve decay?
- A quantity grows 7% a year. What is b? A quantity loses 30% a year. What is b?
- b = 1.25: growth or decay, and what rate? b = 0.6?
- In y = 50 · 0.85x milligrams after x hours, what do a and b mean?
Check your exit ticket
- Each step multiplies by 0.8, less than 1, so each output is smaller than the one before.
- 1.07 and 0.70.
- Growth of 25%. Decay of 40%.
- a = 50 is the starting dose; b = 0.85 means 85% remains each hour, losing 15%.