At the school bookstore, pencils cost $1 29 each, erasers cost $2.55 each, rulers cost 3 52 each and a pack of twelve pens costs
1 answer:
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Answer:
22.36 mile.
Step-by-step explanation:
Please see attached photo for explanation.
In the attached photo, y is the distance between starting point and the end point.
Thus we can obtain the value of y by using the pythagoras theory as show below:
Note: y is the longest side other wise known as the Hypothenus.
y² = 10² + 20²
y² = 100 + 400
y² = 500
Take the square root of both side
y = √500
y = 22.36 mile
Therefore, the distance between the starting point and the end point is 22.36 mile
