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4. You are planning to buy some colorful t-shirts from a catalog. The shirts cost $14 each plus $7 shipping if
you buy 4 or less and $11each plus $10 shipping if you buy more than 4.
a. Write a function to describe the cost of the shirts.
b. What is the cost if you buy 4 shirts?
c. What is the cost if you buy 5 shirts?
d. What is the cost if you buy 8 shirts?

Respuesta :

francocanacari

The cost of buying 4 shirts is $63, the cost of buying 5 shirts is $65, and the cost of buying 8 shirts is $98.

Equations

Given that you are planning to buy some colorful t-shirts from a catalog, and the shirts cost $14 each plus $7 shipping if you buy 4 or less and $11 each plus $10 shipping if you buy more than 4, for:

A) Write a function to describe the cost of the shirts.

B) What is the cost if you buy 4 shirts?

C) What is the cost if you buy 5 shirts?

D) What is the cost if you buy 8 shirts?

The following calculations must be made:

A)

  • 14X + 7 = X ≤ 4
  • 11X + 10 = X ≥ 5

B)

  • 14 x 4 + 7 = X
  • 56 + 7 = X
  • 63 = X

C)

  • 11 x 5 + 10 = X
  • 55 + 10 = X
  • 65 = X

D)

  • 11 x 8 + 10 = X
  • 88 + 10 = X
  • 98 = X

Therefore, the cost of buying 4 shirts is $63, the cost of buying 5 shirts is $65, and the cost of buying 8 shirts is $98.

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