A $275 coat is on sale at 15% off. Find the sale price, round to the nearest cent.
1 answer:
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Step 1. Multiply first equation with -3 and the second one with 2. You'll get:
Step 2. Add both equations together. You'll get:
, which gives x = -2
Step 3. Replace x = -2 in the first equation and calculate y.
The solution is: x=-2, y=5
Step 2. Add both equations together. You'll get:
Step 3. Replace x = -2 in the first equation and calculate y.
The solution is: x=-2, y=5