Write the answer to the problem as an algebraic expression. The product of two numbers is 30. One of the numbers is r. What is the other number?
Our choices are:
a) r/30
b) 30/r
c) 30-r
d) 30r
I believe the answer is b but am thinking it may be c, any help?
These definitions should help you. Remember, you're looking for the product.
http://www.mathsisfun.com/basic-math-definitions.html
30/r
To find the other number, we can set up an equation using the information given. The product of two numbers is 30. One of the numbers is r. Let's represent the other number as x.
We can express the information as the equation:
r * x = 30
To find the other number, we need to isolate x by dividing both sides of the equation by r:
(r * x) / r = 30 / r
Simplifying the equation, we have:
x = 30 / r
Therefore, the other number is given by x = 30/r.
The correct answer is b) 30/r.