IDNStudy.com, kung saan ang mga eksperto at komunidad ay nagtutulungan para sagutin ang iyong mga tanong. Magtanong at makatanggap ng maaasahang sagot mula sa aming dedikadong komunidad ng mga eksperto.


18.The area A of a rectangle varies jointly as the length and the width. If A = 72sq.m when
the length is 9m and the width is 8m, find the area of a rectangle whose length is 6m and whose width
is 4m.
a. 10 sq.m
b. 24 sq.m
c. 20 sq.m
d. 48 sq.m
19. If x varies directly as y and inversely as z, and x = 4 when y = 3 and z = 9, find the value of
un 10-
x when y = 2, and z = 8.
a. x= 3
b. x = 4
c. x = 6
d.x= 8
20. If x varies directly with y and inversely with z, and x = 24 when y = 16 and z = 2, find y
when x = 6 and z = 5.
a. y = 5
b. y = 6
c. y = 8
d. y = 10​