![\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \stackrel{\textit{"u" varies directly with "v"}}{u=kv}\qquad \textit{we know that } \begin{cases} k=0.6\\ v=7.8 \end{cases} \\\\\\ u=(0.6)(7.8)\implies u=4.68](/tpl/images/0227/3762/1fe25.png)
If u varies directly with v, with k=0.6, what is the value of u when v=7.8?
a. u = 13
b...
Mathematics, 11.09.2019 01:30 zhellyyyyy
If u varies directly with v, with k=0.6, what is the value of u when v=7.8?
a. u = 13
b. u = 0.77
c. u = 0.468
d. u = 4.68
Answers: 1
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