<h3>
Answer: (-infinity, 7]</h3>
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Explanation:
The first interval (-infinity, 3) describes any number less than 3, so we can write x < 3 in short hand (where x is the unknown number).
The second interval (-1, 7] means we start at -1 and stop at 7. We do not include -1 but include 7. So we say that 
(ie x is between -1 and 7; exclude -1, include 7)
If you were to graph each ona number line, you would see that the too intervals have overlapping parts. The right most edge extends out as far as x = 7. There is no left most edge as it goes onforever that direction.
Therefore, the to intervals combine to get 
which turns into the interval notation answer of (-infinity, 7]
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It might help to think of it like this: x < 3 and say "x is some number that is less than 3, or it is between -1 and 7". So x could be anything less than 7, including 7 itself.
Answer:
6/9
Step-by-step explanation:
Answer:
d = 25
Step-by-step explanation:
The value of d has to satisfy the inequality
so replace d with one of the given options
We have to simplify the fraction first
Answer:
The system of equations is
Step-by-step explanation:
Let
x ----> the number of minutes of calling time
y ----> the monthly cost of the calling plan
we know that
The linear equation in slope intercept form is equal to
where
m is the slope
b is the y-intercept
In this problem
Plan A
substitute
----> equation A
Plan B
substitute
----> equation B
therefore
The system of equations is
The maximum allowable recurring debt for someone with a monthly income of $54.875 is $4.39.
<h3 /><h3>Maximum allowable recurring debt:</h3>
Using this formula
Maximum allowable recurring debt=Ratio×Monthly income
Where:
Ratio=28/36
Monthly income=$54.875
Let plug in the formula
Maximum allowable recurring debt=(36%×$54.875)-(28%×$54.875)
Maximum allowable recurring debt=$19.755-$15.365
Maximum allowable recurring debt=$4.39
Inconclusion the maximum allowable recurring debt for someone with a monthly income of $54.875 is $4.39.
Learn more about maximum allowable recurring debt here:brainly.com/question/5083803
