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3 years ago

Is 4(x+y) and 4y+4x equivalent

Mathematics

2 answers:

xeze [42]3 years ago

7 0

yes, 4(x+y) and 4y+4x are equivalent.

EleoNora [17]3 years ago

3 0

Answer:

yes, 4(x+y) is in factored form while 4y+4x is in simplified form

Step-by-step explanation:

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2 years ago

Y is directly proportional to x,and y=216 when x=2. Find y when x=7.

makkiz [27]

$\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}
\\\\\\
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3 years ago

What is 4 & 1/2 ÷ 1/4?

marta [7]

Answer:

Step-by-step explanation:

Convert the mixed number to an improper fraction 9/2÷1/4

Reduce the numbers with the greatest common factor 2

and then multiply the numbers 9×2=18 ✅

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