Answer:
witch one
Step-by-step explanation:
<h3>
Answer: (2, 3)</h3>
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Explanation:
1/4 = 0.25 is the scale factor
Multiply this with each coordinate of the given point
0.25*8 = 2 is the new x coordinate
0.25*12 = 3 is the new y coordinate
So (8,12) moves to (2,3) after applying the dilation
The scale factor k makes 0 < k < 1 true, so the point is closer to the origin after applying the dilation.
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Side note: this trick of multiplying the scale factor by each coordinate only works if the dilation is centered at the origin. For any other center, you'll need to apply a translation first, dilate, then translate back again.
You would do 157.5/35 to find how much gas she needs
157/35=4.5
She'll need 4.5gallons of gas
Simple answer to the equation without the circumstances:
3.1x - 1.6x = 35 + 10
1.5x = 45
x = 30