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What methods is used to determine if 2 ratios form a proportion?
To determine if two ratios form a proportion, you can use cross-multiplication. If the cross-products of the ratios are equal, the ratios are proportional. For example, for the ratios ( \frac{a}{b} ) and ( \frac{c}{d} ), if ( a \times d = b \times c ), then the two ratios form a proportion. Additionally, you can also compare the decimal values of the ratios; if they are equal, they are proportional.
How can you use constant ratios to determine if a relationship is proportional?
set up a proportion and see if both sides simplify to the same answer. If the 2 ratios represent a constant ratio they will simplify into fractions
Is 25 to 16 proportional to the ratio 5 to 4?
To determine if the ratios 25 to 16 and 5 to 4 are proportional, we can compare their cross products. The cross product of 25 and 4 is 100, while the cross product of 16 and 5 is 80. Since 100 does not equal 80, the ratios 25 to 16 and 5 to 4 are not proportional.
Is 7 and 9 proportional?
You CAN'T determine whether two numbers are proportional, just by looking at one number from each set.
Is the ratio of length to width for these two rectangles proportional?
To determine if the ratio of length to width for two rectangles is proportional, you need to compare the ratios of their lengths to widths. If the ratios are equal, then the rectangles are proportional. For example, if Rectangle A has a length of 10 units and a width of 5 units (ratio of 10:5 or 2:1), and Rectangle B has a length of 20 units and a width of 10 units (ratio of 20:10 or 2:1), then the rectangles are proportional because the ratios are equal.
what ratios can you use to determine whether the relationship is proportional?
look at the ratios and multiply
What methods is used to determine if 2 ratios form a proportion?
To determine if two ratios form a proportion, you can use cross-multiplication. If the cross-products of the ratios are equal, the ratios are proportional. For example, for the ratios ( \frac{a}{b} ) and ( \frac{c}{d} ), if ( a \times d = b \times c ), then the two ratios form a proportion. Additionally, you can also compare the decimal values of the ratios; if they are equal, they are proportional.
Determine whether the ratios 9 15 and 6 10 form a proportion Justify your answer?
The fractions are proportional and their cross products are equal
What is true about ratios for proportional relationships that is not true about ratios for other relationships?
For proportional relationships the ratio is a constant.
How can you use constant ratios to determine if a relationship is proportional?
set up a proportion and see if both sides simplify to the same answer. If the 2 ratios represent a constant ratio they will simplify into fractions
Is 8 to 9 proportional to 3 to 4?
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.
Is 25 to 16 proportional to the ratio 5 to 4?
To determine if the ratios 25 to 16 and 5 to 4 are proportional, we can compare their cross products. The cross product of 25 and 4 is 100, while the cross product of 16 and 5 is 80. Since 100 does not equal 80, the ratios 25 to 16 and 5 to 4 are not proportional.
Is 7 and 9 proportional?
You CAN'T determine whether two numbers are proportional, just by looking at one number from each set.
Is the ratio of length to width for these two rectangles proportional?
To determine if the ratio of length to width for two rectangles is proportional, you need to compare the ratios of their lengths to widths. If the ratios are equal, then the rectangles are proportional. For example, if Rectangle A has a length of 10 units and a width of 5 units (ratio of 10:5 or 2:1), and Rectangle B has a length of 20 units and a width of 10 units (ratio of 20:10 or 2:1), then the rectangles are proportional because the ratios are equal.
Are 7 9 and 70 90 are proportional?
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.
What does 2.5 4 and 7 11.2 equal a proportion?
To determine if the ratios 2.5:4 and 7:11.2 are proportional, you can set up a proportion and cross-multiply. This gives you 2.5 * 11.2 = 4 * 7. Calculating both sides, you find that 28 = 28, confirming that the two ratios are indeed proportional.
Is 3.20 proportional to 8 and How?
To determine if 3.20 is proportional to 8, we can compare their ratio to a constant. We can express this as a fraction: 3.20/8, which simplifies to 0.4. If two quantities are proportional, their ratios will remain constant when scaled. In this case, 3.20 is not directly proportional to 8 unless we define a specific context or relationship that connects them.
