2 years ago

Solve for the value of k

Mathematics

2 answers:

ELEN [110]2 years ago

8 0

Answer:

k=6

Step-by-step explanation:

a line is 180deg and since there is a 90deg angle there, you can subtract it from 180, leaving you with 90.

(7k + 8) + 40 = 90 >> subtract 40 from both sides

7k + 8 = 50 >> subtract 8 from both sides

7k = 42 >> divide both sides by 7 to get k alone

k = 6

Fofino [41]2 years ago

7 0

Answer:

Combine like terms in the left side. Substract both sides. Divide by both sides therefore. the answer is the option

Step-by-step explanation:

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$\bf \qquad \qquad \textit{inverse proportional variation}\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
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\qquad variation
\end{array}\\\\
-------------------------------\\\\
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