You CAN'T determine whether two numbers are proportional, just by looking at one number from each set.
In order to determine if two sets of numbers are proportional, you need to compare their ratios. For 7 and 9, the ratio is 7/9, which simplifies to 0.777. For 70 and 90, the ratio is 70/90, which simplifies to 0.778. Since these two ratios are not equal, 7 and 9 are not proportional to 70 and 90.
Your question is incomplete... proportional to WHAT?
No, 8/17 and 7/10 are not proportional.
Yes. It is inversely proportional. An increase in x results in a proportional decrease in y and vice versa.
x*y = k where k is a constant.When x = 9, y = 7 so k = 9*7 = 63 When x = 21, 21*y = 63 so y = 3.
In order to determine if two sets of numbers are proportional, you need to compare their ratios. For 7 and 9, the ratio is 7/9, which simplifies to 0.777. For 70 and 90, the ratio is 70/90, which simplifies to 0.778. Since these two ratios are not equal, 7 and 9 are not proportional to 70 and 90.
Your question is incomplete... proportional to WHAT?
No, 8/17 and 7/10 are not proportional.
7
9
To determine if two ratios are proportional, we cross multiply and check if the products are equal. In this case, 8 * 4 = 32 and 9 * 3 = 27. Since 32 is not equal to 27, the ratios 8 to 9 and 3 to 4 are not proportional.
No.
Yes. It is inversely proportional. An increase in x results in a proportional decrease in y and vice versa.
No.
By a factor of 9. Gravitational force is inversely proportional to the square of the distance.By a factor of 9. Gravitational force is inversely proportional to the square of the distance.By a factor of 9. Gravitational force is inversely proportional to the square of the distance.By a factor of 9. Gravitational force is inversely proportional to the square of the distance.
x*y = k where k is a constant.When x = 9, y = 7 so k = 9*7 = 63 When x = 21, 21*y = 63 so y = 3.
Two numbers cannot be proportional. You need at least two pairs ie 4 numbers.