4 years ago

Evaluate 2r (t – 1) ifr = 4 and t = 6

Mathematics

2 answers:

Dominik [7]4 years ago

5 0

Answer:

Step-by-step explanation:

2r (t – 1)

Let r= 4 and t = 6

2*4 ( 6-1)

PEMDAS says parentheses first

2*4(5)

Then multiply from left to right

8 ( 5)

garri49 [273]4 years ago

4 0

Answer:

Step-by-step explanation:

Step 1: Define

2r(t - 1)

r = 4

t = 6

Step 2: Substitute and Evaluate

2(4) · (6 - 1)

8 · 5

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The question is in the image that is attached :)

laila [671]

So hmm check the picture below

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
variation
\end{array}\\\\
-------------------------------\\\\
\textit{we know that }
\begin{cases}
x=3\\
y=1
\end{cases}\implies 1=k3\implies \cfrac{1}{3}=k
\\\\\\
thus\qquad \qquad y=\cfrac{1}{3}x$