Lisa was hiking Death Valley and began at the elevation of 300 feet. She hiked down 450 feet. At what elevation did she end her hike

ad = ae + ed = y + 7

similar triangles therefor

ac/ab = ad/ae

6/4 = (y + 7) / y

cross multiply

6y = 4(y + 7)

6y = 4y + 28

2y = 28

y = 14

step-by-step explanation:

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step-by-step explanation: