meredith48034
meredith48034 meredith48034
  • 04-03-2020
  • Mathematics
contestada

Please assist me with this problem.​

Please assist me with this problem class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 05-03-2020

Answer:

  • r = 1.20w +2.50
  • $12.58
  • $9.00

Step-by-step explanation:

a) The retail price (r) is the wholesale price (w) plus 20% of that price plus $2.50:

  r = w + 0.20w + 2.50

  r = 1.20w + 2.50

__

b) Substituting w=8.40, we have ...

  r = 1.20·8.40 +2.50 = 12.58

The retail price of the chair is $12.58.

__

c) Substituting r=13.30, we have ...

  13.30 = 1.20w +2.50

  10.80 = 1.20w . . . . . . . subtract 2.50

  9.00 = w . . . . . . . . . . . . divide by 1.20

The wholesale price of the chair is $9.00.

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