Mathematics: Someone help me with this please and thank you

Perimeter = side + base + side.So just add those....

Someone help me with this please and thank you

travisvb

25.06.2021

(47,16)

Step-by-step explanation:

System of Equations Problem.

Solve v(7)+b(6)=394;v(3)+b(12)=612

Solve 6b+7v=394 for b

Add -7v to both sides.

6b+7v+−7v=394+−7v

6b=−7v+394

Divide both sides by 6.

$b=\frac{-7}{6} v+\frac{197}{3}$

Substitute $b=\frac{-7}{6} v+\frac{197}{3}$ for b in 12b+3v=612

12b+3v=612

$12(\frac{-7}{6} v+\frac{197}{3} )+3v=612$

Simplify both sides of the equation.

−11v+788=612

Add -788 to both sides.

−11v+788+−788=612+−788

−11v=−176

$\frac{-11v}{-11} =\frac{-176}{-11}$

v=16

Substitute 16 for v in $b=\frac{-7}{6} v+\frac{197}{3}$

$b=\frac{-7}{6} v+\frac{197}{3}$

$b=\frac{-7}{6}(16)+\frac{197}{3}$

Simplify both sides of the equation.

b=47

b=47 and v=16

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