Answer:
11.
Take out 2x ( greatest common factor )
Factor
Don't forget about the 2x we took out earlier
Solution to 11:
12.
This is the difference of squares, so let's use the formula...
if, and
then, the Solution to 12 is:
13.
First of all, you must find the greatest common factor because there isn't anything else you can do.
Now you can see the difference of cubes...
so, the Solution to 13 is:
Answer:
<u><em>the equation is true</em></u>
Step-by-step explanation:
solve the equation 4x + 6 = 4 + 2(2x + 1). Which choice describes the meaning of his result, 6 = 6?
4x + 6 = 4 + 2(2x + 1)
4x + 6 = 4 + 4x + 2
6 = 4 + 2
<u><em>6 = 6</em></u>
<h2><u><em>
the equation is true</em></u></h2>
The number of 30- period until the value if the give card be equal is 20 30- day period
<h3>How to write and solve equation</h3>
let
- Number of 30- day period = x
Card 1:
50 - 2x
Card 2:
40 - 1.50x
50 - 2x = 40 - 1.50x
50 - 40 = -1.50x + 2x
10 = 0.50x
- divide both sides by 0.50
x = 10/0.50
x = 20
In conclusion, it will take 20 30- day period until the value of the given card can be equal.
Complete question:
Tavon has a $50 gift card that loses $2 for each 30-day period it is not used. He has a $40 card that loses $1.50 for each 30-day period it is not used.
Read more on equation:
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4x + 5 = 8
First, take away '5' from both sides.
Second, subtract '8 - 5' to get '3'.
Third, divide both sides by '4'.
Answer as fraction:
Answer as decimal: