3 years ago

What is 130% converted into a decimal?

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

8 0

Move the percent two places to the left 1.30

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MAXImum [283]

Answer:

x is equal to 6

Step-by-step explanation:

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divide both sides by 4

4 eliminates 4 leaving x behind

4 divides 24 making x =6

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3 years ago

Solve the system of linear equations by graphing

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Suppose y varies directly with x. If y = -4 when x = 8, what is the equation of direct variation?

tresset_1 [31]

$\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we also know that }~~ \begin{cases} y=-4\\ x=8 \end{cases}\implies -4=k(8)\implies \cfrac{-4}{8}=k\implies -\cfrac{1}{2}=k \\\\[-0.35em] ~\dotfill\\\\ ~\hfill y=-\cfrac{1}{2}x~\hfill$