1. At Saturday's football game, there were 45 more than half the fans at Fridays game. Assuming there were "x" fans at Friday's game, what expression represents the number of fans at Saturday's game?
= 1/2x + 45 (1/2 times x plus 45)
2. What is the algebraic expression for the phrase "'the product of a number and 4 decreased by 13"?
= 4x - 13.
3. Write an expression to represent a number subtracted by 2.5.
= x - 2.5
I agree with all of your answers
Thanks!
To solve these problems, we need to break down the given information and translate it into algebraic expressions.
1. For the first problem, let's assume that "x" represents the number of fans at Friday's game. The problem states that at Saturday's game, there were 45 more than half the fans at Friday's game. To express this mathematically, we can start with half of the fans at Friday's game, which is (1/2)x. Then we add 45 to that expression to represent the additional fans at Saturday's game. Therefore, the expression for the number of fans at Saturday's game is (1/2)x + 45.
2. The second problem asks for the algebraic expression of "the product of a number and 4 decreased by 13." Let's assume that "x" represents the number. The product of a number and 4 can be written as 4x. Then if we decrease that by 13, the expression becomes 4x - 13.
3. For the third problem, we are asked to write an expression to represent a number subtracted by 2.5. Let's assume "x" represents the number. If we subtract 2.5 from the number, the expression becomes x - 2.5.