Acamera is selling for $7.50 off the regular price. it was marked down 15%. a student used the equation:

15(7.5) = original price

and found the regular price of the camera to be $112.50.

explain the error(s) in the student’s work.

A camera is selling for $7.50 off the regular price. It was marked down 15%.

Let the regular price be x

We can solve as follows:

=>

=> x = 8.82

The correct regular price is $8.82.

A student used the equation:

15(7.5) = Original price

and found the regular price of the camera to be $112.50.

The student did the wrong calculation. He simply took 15% of selling price.

He should have done 15% of regular price that will come to be the selling price.

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step-by-step explanation: