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Janice bought three lamps for her new apartment in a city where the sales tax rate is 5%. The lamps cost $25, $35, and $45. Find the total cost of her lamp purchase , including sales tax.

Respuesta :

jcherry99

Remark

You could do this by taking 5% of each lamp as

5% *25 + 25

5%* 35 + 35

5%*45 + 45

The easier way is to pretend that she bought all three at the same place at the same time.

(25 + 35 + 45)*(5/100) + 105

Easier yet is to do it this way.

(35 + 25 + 45)*1.05 = 105 * 1.05 = 110.25


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