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problem:
A factory makes 5 000 items in 6 hours.
How many items could be made in 15 hours?
{loadmoduleid 234}
answer:
1. step: proportion
: 6 hours – 5 000 items
* 15 hours – x items
2. step: which proportion?
↑hours ↑more items = direct proportion
3. step: formula
x = 5 000 * 15
6
x = 12 500 items
4. step: answer
12 500 items could be produced.