a backpack is discounted 10% on sale for $37.80
0.9x = 37.8
Solve for x.
PLEASE EXPLAIN HOW U GOT THAT?!?!?
To determine the original price of the backpack before the discount, you can use the formula:
Original price = Sale price / (1 - Discount rate)
In this case, the sale price of the backpack is $37.80 and the discount rate is 10%.
First, convert the discount rate to decimal form by dividing it by 100:
Discount rate = 10/100 = 0.10
Next, substitute the values into the formula:
Original price = $37.80 / (1 - 0.10)
To calculate further:
Original price = $37.80 / 0.90
Now, divide $37.80 by 0.90 to find the original price:
Original price ≈ $42
Therefore, the original price of the backpack before the discount was approximately $42.