What calculation is modeled on the number line

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step-by-step explanation:

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dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.

2/3=10/15

1/5=3/15

10+3=13/15

2 13/15 is the answer