Answer:
13,173,255
Step-by-step explanation:
my birthday's tomorrow
Answer:
The answer is (-5/24, -7.5).
Step-by-step explanation:
There are two methods to solving a system of equations - substitution or elimination. In this example, we can use elimination since the coefficients of 'x' are opposite signs. To complete elmination, we simply add the equations together:
-12x - 5y = 40
<u>+ 12x - 11y = 80</u>
-16y = 120
Use inverse operations to solve for 'y' by dividing both sides by -16 to get y = -7.5.
Next, plug in the value of 'y' into one of the equations and solve for 'x':
-12x - (5)(-7.5) = 40 or -12x + 37.5 = 40, now subtract 37.5 from both sides: -12x + 37.5 - 37.5 = 40 - 37.5 or -12x = 5/2. Lastly, divide both sides by -12 to solve for x, x = -5/24.
Answer:
see the explanation in the procedure
Step-by-step explanation:
<u><em>The complete question is</em></u>
Tanisha and Rebecca are signing up for the new cellphone plans that only charge for the number of minutes and everything else is included in a monthly fee. Their plans are as follows:
Tanisha s Plan: $0.15 per minute used talking and a $25 monthly fee
Rebecca s Plan: $0.10 per minute used talking and a $18.50 monthly fee
After how many minutes will the two plans charge the same amount?
Let
x ----> the number of minutes
y ---> the total charge in dollars
we know that
<em>Tanisha s Plan</em>
-----> equation A
<em>
Rebecca s Plan</em>
-----> equation B
To find out after how many minutes will the two plans charge the same amount, equate equation A and equation B
solve for x

therefore
They will never pay the same amount , because the time cannot be a negative number.
Rebecca s Plan is better than Tanisha s Plan because it has smaller fee and less cost per minute
Answer:
nah
Step-by-step explanation:
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