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Mamont248 [21]
3 years ago
9

Kaylee is an independent retailer. she uses business cards to give her contact information to prospective customers, so she goes

to a local print shop. Each box of her business cards contains 100 cards. The printing costs $55.00 for the first boxes up to 4 boxes. Then it's $20 for additional 2 boxes.
a) How much will it cost to make 4 boxes of business cards?


b)How much will it cost to make 10 boxes of business cards?


c) write a piecewise function c(x) for the cost of x sets of copies of manue'ls resume
Mathematics
1 answer:
NikAS [45]3 years ago
8 0

Answer:a is 80

b is 200

Step-by-step explanation:

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Answer:

B.

C.

D.

E.

Step-by-step explanation:

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3 years ago
Which expression is 8y - 5x + 13y equivalent to after being simplified?
Thepotemich [5.8K]
You combine like terms like 8y+13y which gives you 21y and don't forget the -5x so your simplified equation would end up being A. 21 - 5x
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3 years ago
8x-5y=21 simultaneous linear equation<br>2x+9y=-5
olya-2409 [2.1K]

Answer:

x=2 and y=-1

Step-by-step explanation:

If two equations are given, we can solve one of the equation in terms of single variable and put it in the other equation which will further give the value of x and y.

For the given equations:

8x-5y=21              Equation:1

2x+9y=-5             Equation:2

Solving equation multiply equation 2 with 4 on both the sides

8x+36y=-20        Equation 3

Subtracting Equation:3 from Equation:1

8x-5y-(8x+36y)=21-(-20)\\8x-5y-8x-36y=21+20\\-41y=41\\y=-1

Putting value of 'y' in Equation:2 which will give the value of x

2x+9y=-5\\2x+9(-1)=-5\\2x-9=-5\\2x=4\\x=2

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A formula is a way of an expression in order to make solving a question easier than ever.



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