1 Answer

Mcgtrt · Answer 1 · 2023-07-16T09:24:41+0000

Given:

$a=49\text{ and b=7.}$

a varies directly b.

Required:

We need to find the equation that relates a and b.

Step-by-step explanation:

Given that a varies directly as b. It can be written as follows.

$a=\beta b$
$Substitute\text{ a =49 and b =7 in the equation to find the value of }\beta.$

$49=\beta(7)$

Divide both sides by 7.

$(49)/(7)=\beta(7)/(7)$
$\beta=7$
$Substitute\text{ }\beta=7\text{ in the equation.}$
a=7b

Final answer:

The equation that relates a and b.

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