2 years ago

14.2 is 35.5% of what number w?

Mathematics

1 answer:

Tresset [83]2 years ago

8 0

W = 40
the rest is shown in the image below

You might be interested in

If you know the area of a circle, how can you find its radius? Use the drop-down menus to explain your answer. (Choose: A. Divid

malfutka [58]

The answer is to this is b

6 0

2 years ago

If x varies directly with y and x=3.5 when y=14 find x when y=18

jekas [21]

$\bf \qquad \qquad \textit{direct proportional variation}
\\\\
\textit{\underline{x} varies directly with \underline{y}}\qquad \qquad x=ky\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
x=3.5\\
y=14
\end{cases}\implies 3.5=k14\implies \cfrac{3.5}{14}=k
\\\\\\
\cfrac{1}{4}=k\qquad therefore\qquad \boxed{x=\cfrac{1}{4}y}
\\\\\\
\textit{when y = 18, what is \underline{x}?}\qquad x=\cfrac{1}{4}(18)$