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evablogger [386]
3 years ago
6

To join a local square dancing group, Jan has to pay a $100 sign-up fee plus $25 per month. Write an equation for the cost (y) b

ased on the number of months (x).
Mathematics
1 answer:
klasskru [66]3 years ago
3 0

Answer:

y = $100 + $25x

Step-by-step explanation:

y is the total cost

x is the number of months

The sign up fee is $100.

Each month would cost an additional $25 per month.

The total cost then would be the sign up fee plus the $25 for each month. Since we do not know the number of months, we will assign x.

So the equation would be:

y = $100 + $25x

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11cm by 6 cm rectangle
puteri [66]

Answer:

Question unclear.

If the question was about the perimeter of the rectangle, it is calculated as:

= (Length * 2) + (Height * 2)

= (11 * 2) + (6 * 2)

= 22 + 12

= 34 cm

If the question was bout Area, the area is:

= Length * width

= 11 * 6

= 66 cm²

8 0
3 years ago
Why is the numerator greater than the denominator in a fraction that is equivalent to a percent greater than 100?
Anettt [7]
I don’t know I think someone else is gonna help u
4 0
3 years ago
If f(x)=5x-12, find a value for $x$ so that f^{-1}(x)=f(x+1).
Vinil7 [7]

Answer:

\boxed{\sf \ \ \  x=\dfrac{47}{24} \ \ \ }

Step-by-step explanation:

Hello,

f(x)=5x-12

we need to find x so that

f^{-1}(x)=f(x+1)

<u>so first of all we can write</u>

x = (fof^{-1})(x)=f(f^{-1}(x))=5f^{-1}(x)-12\\\\5f^{-1}(x)=x+12\\\\f^{-1}(x)=\dfrac{x+12}{5}

and f(x+1) = 5(x+1) - 12 = 5x + 5 -12 = 5x - 7

then solving

f^{-1}(x)=f(x+1)

is equivalent to

\dfrac{x+12}{5}=5x-7 \ multiply \ by \ 5 \\\\ x+12 = 5(5x-7)=25x-35\\ 25x-x=12+35\\\\24x=47\\\\x=\dfrac{47}{24}

Hope this helps

4 0
3 years ago
Read 2 more answers
Factor f(x)= 3x³+5x²-47x+15 into linear factors given that -5 is a zero of f(x)
AveGali [126]
If  -5 is a zero then f(x) is divisible by (x + 5)

the quotient when F*x) is divided by x + 5  is  :-
3x^2 - 10x + 3
this factors to 
(3x  - 1)(x  -  3)

so the answer is (x + 5)(3x - 1)(x -  3)  
7 0
3 years ago
Which of the following is not equal to cot⁡(210°)?
saul85 [17]
Cot (210) = √3

cot⁡(-150°) = <span>√3
cot⁡(30°) = </span><span>√3
-cot⁡(30°) =  -</span><span>√3 .....................this is not equal to cot (210°)
-cot⁡(-30°) = </span>√3




7 0
3 years ago
Read 2 more answers
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