1> which expression represents "5 less than the product of 7 and x"?
is the answer this: 5-7x
2> can anyone give me an example of multiplicative inverse property?
Common sense tells me that the first one should read 7x-5. You have it reversed.
Your second question should be answered in here somewhere:
http://www.google.com/search?q=multiplicative+inverse+property&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA_en
A math tutor should be along soon to give you further ideas.
thanks..
Yours would be right if it read 5 less seven times x. But it does not say that. See Writeteachers comment.
For any number n, there exists a number 1/n such that n* 1/n=1
example: Find the multiplicative inverse of 7.93
7.93 ( MI)=1
MI=1/7.93= .126103405...
1> To find the expression that represents "5 less than the product of 7 and x," you need to understand the wording of the question. "The product of 7 and x" is represented by 7x because it means multiplying 7 and x together. Then, "5 less than the product" means subtracting 5 from the result. So, the expression would be 7x - 5, not 5 - 7x.
2> The multiplicative inverse property states that for any non-zero number a, there exists another number, which is the reciprocal of a, such that their product is equal to 1. In simpler terms, the multiplicative inverse of a number is the number that, when multiplied by the original number, gives the result of 1.
For example, let's consider the number 5. The multiplicative inverse of 5 is 1/5 because if we multiply 5 by 1/5, we get:
5 * (1/5) = 1
So, in this case, 1/5 is the multiplicative inverse of 5. This property holds true for any non-zero number, such as 2 and its multiplicative inverse 1/2, or 3 and its multiplicative inverse 1/3, and so on.