exmicaela20 exmicaela20

25-06-2022
Mathematics

contestada

Z varies directly as x^3 and inversely as y^3. If z=167 when x = 3 and y=10, find z if X=4 and y=6

Respuesta :

michaelfaraday12 michaelfaraday12

25-06-2022

Answer is 1832.7

step by step

z=kx^3 / y^3

167=27k/1000

k=16700/27

k=6185.2, then

z=6185.2×4^3/6^3

z=6185.2×64/216

z=1832.7

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