What event realates to vibration of earth caused by earthquakes, volcanoes, nuclear tests?
1 answer:
You might be interested in
Answer:
$5.38
Explanation:
What we know:
- The Christmas cards had an original cost that was marked down by 65%
- The final selling price afterwards was $3.50
Let be equal to the original cost of the Christmas cards.
If was marked down by 65% to get $3.50, we can write this equation:
To solve for x, we need to first convert 65% into a decimal. To do this, we divide by 100.
Now, our final equation looks like this:
Divide both sides by 0.65 to isolate x
Therefore, the original selling price of the cards was $5.38.
I hope this helps!