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What is a rule for how to find a ratio with a denominator of 1 without using a diagram?
If you start with a ratio in the form p/q and want a ratio with a denominator of 1, simply divided p by q. So suppose you are given the ratio 35/10 (so that p = 35, q = 10). Then divide 35 by 10 which gives 3.5. So the units ratio is 3.5:1 or (7/2):1
What happens to the area of a circle if the diameter is quadrupled?
If the diameter of a circle is quadrupled, the circle's area goes up 16 times as area is proportional to diameter squared. Remember area = pi /4 times diameter squared -------------------------------------------------------------------------- In any ratio of shapes: whatever the ratio of the lengths, the ratio of the areas is the square of that ratio. In this case, the ratio is 1:4, so the areas are in the ratio of 1²:4² = 1:16; ie as the length of the diameter is quadrupled (ratio 1:4), the area becomes 16 times bigger (1:16).
What is the ratio of 16 to 2?
8 to 1....i think
What ratio is equal to 9 to 16?
18 to 32
If the perimeters of two squares are in a ratio of 4 to 9 what is the areas of the two squares?
The ratio is 16 to 81.
