3/4(2x-6)-2(1/2x+1)-1+5x

Mathematics

2 answers:

OlgaM077 [116]2 years ago

6 0

Answer:

Distribute:

)(2x)+(

)(−6)+(−2)(

x)+(−2)(1)+−1+5x

−9

+−x+−2+−1+5x

Combine Like Terms:

−9

+−x+−2+−1+5x

x+−x+5x)+(

−9

+−2+−1)

−15

Step-by-step explanation:

True [87]2 years ago

5 0

Answer:

Hello!

Your math problem is

in the picture!

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If y=1/2 when x=2, find y when x=3, given that y varies directly with x

Lelu [443]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
y=\frac{1}{2}\\
x=2
\end{cases}\implies \cfrac{1}{2}=k2\implies \cfrac{1}{4}=k
\\\\\\
\boxed{y=\cfrac{1}{4}x}
\\\\\\
\textit{when x=3, what is \underline{y}?}\qquad y=\cfrac{1}{4}\cdot 3$