Core Connections: Course 2
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Core Connections: Course 2 View details
1. Section 6.1
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Exercise 30 Page 331

Practice makes perfect
We are asked to write an algebraic expression for the given verbal expression. 7more than a number Let's consider the given example! 5 less than& a number n -& 5 The key phrase in the verbal expression is more than. This indicates that that we should add two things. ... + ... The two terms that we are adding together are 7 and a number. Since 14 comes first in the verbal expression, it should be on the left-hand side of the addition. 7 + a number When we say a number, this is indicating an arbitrary number or a variable. If we call this number n, we can complete our expression. 7 + & a number 7 & + n Note that this is only one of multiple ways to algebraically express the given verbal expression.
We are asked to write an algebraic expression for the given verbal expression. Twice a number Let's consider the given example! 5 less than& a number n -& 5 The key phrase in the verbal expression is twice. This indicates that that we should multiply one term, 2, by another term. 2 ... The two terms that we are multiplying together are 2 and a number. Since 2 comes first in the verbal expression, it should be on the left-hand side of the multiplication. Twice a number 2 a number When we say a number, this is indicating an arbitrary number or a variable. If we call this number x, we can complete our expression. Twice & a number 2 & x Note that this is only one of multiple ways to algebraically express the given verbal expression.