Math  /  Geometry

QuestionWhat is the distance between the bank and Hiroto's house on the map? Enter the distance to the nearest quarter mile. (Each unit represents 1 mile.) \square mile's

Studdy Solution

STEP 1

What is this asking? How far apart are two points on a grid, where each box represents a mile, rounded to the nearest quarter mile? Watch out! Remember to round to the nearest quarter mile, not just the nearest mile!

STEP 2

1. Find the difference in x and y coordinates.
2. Use the Pythagorean theorem.
3. Round to the nearest quarter mile.

STEP 3

Let's **locate** our points!
The bank is at (6,6)(-6, 6) and Hiroto's house is at (3,3)(3, 3).
We're trying to find the distance between them.

STEP 4

Think of this as a right triangle!
The horizontal distance is the difference in the x-coordinates.
That's 3(6)=3+6=93 - (-6) = 3 + 6 = \mathbf{9} miles.

STEP 5

The vertical distance is the difference in the y-coordinates.
That's 63=36 - 3 = \mathbf{3} miles.

STEP 6

Remember the Pythagorean theorem? a2+b2=c2a^2 + b^2 = c^2.
Here, aa and bb are the legs of the right triangle (our horizontal and vertical distances), and cc is the hypotenuse (the distance we want to find).

STEP 7

Let's plug in our values: 92+32=c29^2 + 3^2 = c^2.
This simplifies to 81+9=c281 + 9 = c^2, so 90=c290 = c^2.

STEP 8

To find cc, we take the square root of both sides: 90=c\sqrt{90} = c.
This gives us c9.4868c \approx \mathbf{9.4868} miles.

STEP 9

We need to round 9.4868\mathbf{9.4868} to the nearest quarter mile.
Think of quarter miles as 0.25,0.50,0.750.25, 0.50, 0.75, and 1.001.00.

STEP 10

Is 9.4868\mathbf{9.4868} closer to 9.509.50 or 9.259.25?
It's closer to 9.509.50!
So, our rounded distance is 9.5\mathbf{9.5} miles.

STEP 11

The distance between the bank and Hiroto's house on the map is approximately 9.5\mathbf{9.5} miles.

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