$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
y=216\\
x=2
\end{cases}\implies 216=k2\implies \cfrac{216}{2}=k
\\\\\\
108=k\qquad therefore\qquad \boxed{y=108x}
\\\\\\
\textit{when x = 7, what is \underline{y}?}\qquad y=108(7)$

6 0

3 years ago

Mark is comparing prices of different brands before he goes shopping. Who has the best deal on ice cream? Brand Size & P

Mariana [72]

Answer:

Breyers is the correct answer

Step-by-step explanation:

$4.50/30 oz = .15

$15.36/128 oz = .12

$2.88/16 oz = .18

7 0

3 years ago