Question

If Z varies inversely as w, and z=15 when w=4, find z when w=10

Answer 1

$\\ \sf\longmapsto z1w2=z2w1$

$\\ \sf\longmapsto 15(10)=4z_2$

$\\ \sf\longmapsto 4z_2=150$

$\\ \sf\longmapsto z_2\approx 38$

Answer 2

⟼4z

jshsujsjajajenxjnxjde

⟼z

2

≈38