Question

If y varies directly as x and y = 14 when x = 8, find x when y = 21.

A. 24
B. 12
C. 36
D. 16

Answer 1

14 : 8
21 : x
cross multiply

Answer 2

i got 1.14

Answer 3

then you did not do it correctly

Answer 4

14x=8 *21
x = 21 *8/14

Answer 5

its b ... sry im acting dumb :(:(.. its like 3 in the morning and if i dont finish my work im going to fail :(

Answer 6

im sry :(

Answer 7

hey, no problem. just try to keep it straight in the calculator, otherwise you will be prone to making mistakes. brackets are important.

Answer 8

ok i will.