Answer:
100 miles
Step-by-step explanation:
Create equations.
Company A: y = 0.28x + 50
Company B: y = 0.78x
These are equal to each other.
0.78x = 0.28x + 50
0.5x = 50
x = 100
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The result we would get when we simplify 5x/(x + 1) - (x - 4)/(x + 1), is 4.
<h3>How to Simplify an Expression?</h3>
Given the following expression:
5x/(x + 1) - (x - 4)/(x + 1), the first step to take is to find the common denominator.
The common denominator of the given expression is: (x + 1). Therefore, the expression would be simplified as shown below:
[1(5x) - 1(x - 4)] / (x + 1)
Evaluate the numerator
(5x - x + 4) / (x + 1)
Combine like terms in the numerator
(4x + 4) / (x + 1)
4(x + 1) / (x + 1)
Divide the numerator and denominator by (x + 1)
= 4
Therefore, the result we would get after simplifying the expression, 5x/(x + 1) - (x - 4)/(x + 1), is 4.
Learn more about simplification of expression on:
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Answer:
x<21.6
Step-by-step explanation:
You're welcome. :)
Answer:
A) is a function
B) f(x) is greater
C) x = 12
Step-by-step explanation:
A) Yes, the relation is a function.
A function has a unique input value for each output value. There are no repeated x-values, so this relation is a function.
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B) The table says y=6 for x=6.
f(6) = 2(6)+16 = 28
f(x) has a greater value for x=6.
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C) Substituting the given information, we have ...
40 = 2x +16
24 = 2x
12 = x
The value of x is 12 when f(x) is 40.
