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anonymous
 one year ago
I need some help with this question.
Use the properties of real numbers to rewrite the expression. I'll put the expression in the comments.
anonymous
 one year ago
I need some help with this question. Use the properties of real numbers to rewrite the expression. I'll put the expression in the comments.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[(2\5) * (7) * (5/2)\]

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1A number times its reciprocal equals 1. For example, 1/2 * 2/1 = 1 1/3 * 3/1 = 1 2/3 * 3/2 = 1

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Also, the commutative property of multiplication allows you to change the order of the factors. Examples: 2 * 5 = 5 * 2 7 * 3 = 3 * 7

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The associative property of multiplication allows you to group factors in different ways. Examples: (2 * 3) * 5 = 2 * (3 * 5) 3 * (x * y) = (3 * x) * y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So would the answer be 7?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now look at your fractions. They are 2/5 and 5/2. Group them together and multiply them together. Then multiply the result by 7.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct, since 2/5 * 5/2 = 1 since 2/5 and 5/2 are reciprocals. 1 times any number is the number, so (2/5) * (7) * (5/2) = = (2/5) * (5/2) * (7) = 1 * (7) = 7

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you! I got it right. I got an 80% because I missed one of my questions on my assignment. But I got this one right! Thank you!
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