31.4 = 3.14 * diameter.
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- x = $75 / 1.25 = $60.
- A circle has a circumference of 31.4 cm. What is its diameter? (Use \(\pi \approx 3.14\))
- Circumference = \(\pi \times\) diameter.
- Diameter = 31.4 / 3.14 = 10 cm.
- The product of two consecutive even numbers is 168. What are the numbers?
- Let the first even number be x. The next is x + 2.
