Answer:
The cost of 1 eraser is <u>$0.07</u>.
Step-by-step explanation:
Given:
The school store sells erasers. If Mrs. McBryde purchases 1000 erasers for $70.00,
Now, to find the cost of 1 eraser.
Let the cost of 1 eraser be
The cost of 1000 erasers is $70.00.
So, 1000 is equivalent to $70.00.
Thus, 1 is equivalent to
Now, to solve by using cross multiplication method:
<em>By cross multiplying we get:</em>
<em>Dividing both sides by 1000 we get:</em>
Therefore, the cost of 1 eraser is $0.07.