6. 30 miles every 2 hours is the same as 15 miles every hour. When you multiply 15 miles by the number of hours (t), you find the distance. Therefore, the answer is d = 15t
7. 3 pounds of onions cost 2.67, so if you divide 2.67 by 3, you will have .89 for every pound. Now you multiply .89 by 4 and 5, since those are the only pounds in the answer choices, and see if they match. .89 * 4 = 3.56 and .89 * 5 = 4.45. C is the only one that matches, since 4.45 / 5 = .89
For number 6, we know that Amber rides 30 miles in 2 hours, so she rides 15 miles in one hour. As a result, I have this equation which is d=15t which is B. For number 7, to find the proportional in 3 pounds at $2.67, so I just need to find how much does it cost to buy one pounds of onion which equal $0.89, now I just take $0.89×5 which equal $4.45 for 5 pounds, so to find the proportional between the two of them which $4.45/5 pounds which is C. Hope it help!
Here is one way I learned from teacher take 267 and ÷ by 3 and there are three part and if you do it right you might have a left over so and take one of those three ÷ and see how much you have left and × it by 2
It is answer choice A because you have to take the the GCF of each number which is 2x. Then if you were to divide the numbers by 2x you would put those numbers in the brackets. because and and