Stairs

Between adjacent levels are 15 stairs. If the step were 1.2 cm shorter, there would be 16 stairs. What is the stair height?

Correct answer:

x =  19.2 cm

Step-by-step explanation:

z=1.2 cm  15x=16(xz) 15x=16(x1.2)  15 x=16 (x1.2)  x=19.2  x=119.2=19.2  x=596=19.2=19.2 cm



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