Math
If w is partly constant and partly varies directly as x and w=9 when x=4 w=27 when x= 16 find
An equation connection x and w
And (b) the value of w when x =8
asked by
Thanakorn

w=kx+c
9=k4+c
27=k*16+c
subtract eq 1 from eq 2
18=12k solve for k
then solve for c in either equationposted by bobpursley

K=1.5,C=3 ,when x=8 w=15
posted by Ola uthman
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