Which pair of ratios can form a true proportion?
A. 7/4 , 21/12
B. 6/3 , 5/6
C. 7/10 , 6/7
D. 3/5 , 7/12
impatient much?
Cross-multiply to see whether the two products are equal. For example
7*7 ≠ 10*6 so 7/10 ≠ 6/7
now check the rest
Someone pls help
Ok thank you
To determine which pair of ratios can form a true proportion, we need to check if the two ratios are equal. A proportion is an equation that states that two ratios are equivalent.
Let's go through each option and compare the ratios:
A. 7/4 , 21/12
To compare, we can find the decimal equivalents of both ratios:
7/4 = 1.75
21/12 = 1.75
Since the decimal equivalents are equal, this pair of ratios can form a true proportion.
B. 6/3 , 5/6
6/3 = 2
5/6 = 0.83 (rounded to two decimal places)
Since the decimal equivalents are not equal, this pair of ratios cannot form a true proportion.
C. 7/10 , 6/7
7/10 = 0.7
6/7 = 0.86 (rounded to two decimal places)
Since the decimal equivalents are not equal, this pair of ratios cannot form a true proportion.
D. 3/5 , 7/12
3/5 = 0.6
7/12 = 0.58 (rounded to two decimal places)
Since the decimal equivalents are not equal, this pair of ratios cannot form a true proportion.
Therefore, the pair of ratios that can form a true proportion is option A: 7/4 , 21/12.