3x+5x-1+4x+2x+6x+1=540 (Sum of all int. angles of a pentagon is 540)
20x-0=540 (Add like terms)
20x=540 (addition property of equality)
<u>x=27 </u>
350 + 4x = 750
x = the amount the fee went up annually.
4x = 750 - 350
4x = 400
x = 400/4
x = 100
The rate of change is 100 dollars per year. The initial value of her business is 350 dollars. To check your work (aka how do you know) if you add 100 dollars to her initial value (350) 4 times you get 750.
The answer is 5/8 because 2+3 is 5
Answer:
B) Six Months.
Step-by-step explanation:
We can write an equation to model each situtation.
Let <em>m</em> be the number of months and <em>c</em> be its total cost.
Uptown Cable charges $120 for the initial installation fee plus $25 per month. In other words, its total cost is:
Downtown Cable charges an initial $60 fee plus $35 per month. So:
To find after how many months will the two services remain the same, we can set the two equations equal to each other and solve for <em>m</em>. So:
Solve for <em>m: </em>
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The two cable companies will charge the same after six months of use.
Notes:
If the customer uses the service for less than six months, then Downtown Cable is better since its initial cost is lower.
If the customer uses the service for more than six months, then Uptown Cable is better since its rate per month is lower.
Answer:
94.985
Step-by-step explanation:
the equation for the area of a circle is pi*r^2
and i solved it with pi as 3.14, so pi would be 3.14
and radius would be half of the diameter,
(so 11/2 would be 5.5, so radius is 5.5)
and its radius squared(5.5 squared is 30.25)
30.25*3.14 = 94.985
if they use a different value for pi, the answer be
different so youd have to account for that ig