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anonymous
 one year ago
Can someone tell me how I should go about this problem?
anonymous
 one year ago
Can someone tell me how I should go about this problem?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Part A: Write an algebraic expression for 8 more than 5 times a number. Part B: What is another way this expression can be read?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Start by choosing a variable to represent the number. Which letter do you like as a variable, x, n, a, b, ...? It's your choice.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Great. We'll use x. How do you show 5 times a number if the number is x?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1No. x/5 means x divided by 5. Remember that a fraction means division. We want to show 5 times x, not x divided by 5.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct, but in math, we are lazy, so we want to write as little as possible, so we normally shorten 5 * x to simply 5x.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.15x means 5 times the number represented by the variable x, or simply, 5 times a number. Now we have another step. We need to show 8 more than 5x.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1For example, 8 more than 2 is 10, and 8 more than 10 is 18. What operation do you do with 8 and 2 to end up with 10? What operation do you do with 8 and 10 to end up with 18?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Exactly. To show a number is 8 more than another number, you add 8 to the number. Here we need to add 8 to 5x. We end up with 5x + 8

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438811427858:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1This answers part A.: 5x + 8

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now we can look at part B.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1We need to read the expression 5x + 8 in a different way. You can say: "5 times a number more than 8" Also: "5 times a number increased by 8" Also: "8 more than the product of 5 and a number"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you (: @mathsudent55
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