Answer:
Step-by-step explanation:
Let
y ----> the distance in miles
x ----> the time in hours
using proportion
Simplify
This is a linear direct variation
The unit rate or speed is the slope of the linear equation
The unit rate is 4 miles/hour
What is the algebraic expression for the difference between seven times a number and three times that number?
2 answers:
Given
An algebraic expression is the difference between seven times a number and three times that number.
To find:
The algebraic expression.
Solution:
Let x be the unknown number.
Multiplication is used for times and subtraction is used for difference.
7 times of a number = 7x
3 times of that number = 3x
The difference between seven times a number and three times that number is
Therefore, the algebraic expression for the given statement is 7x-3x and its simplified form is 4x.
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