If Isabella has $33, then they both have $154
<h3>Further explanation</h3>
Let the linear equation :
If we draw the above equation on Cartesian Coordinates , it will be a straight line with :
<em>m → gradient of the line</em>
<em>( 0 , c ) → y - intercept</em>
Gradient of the line could also be calculated from two arbitrary points on line ( x₁ , y₁ ) and ( x₂ , y₂ ) with the formula :
If point ( x₁ , y₁ ) is on the line with gradient m , the equation of the line will be :
Let us tackle the problem!
Let :
<em>Isabella's money = y</em>
<em>Shane's money = x</em>
If the ratio of Isabella's money to Shane is 3 : 11 then :
<h3>Isabella has $33 → y = 33 </h3>
<h3>Shane has $121</h3>
Isabella and Shane together will have :
<h2>x + y = $121 + $33 = $154</h2>
<h3>Learn more </h3>
<h3>Answer details</h3>
Grade: High School
Subject: Mathematics
Chapter: Linear Equations
Keywords: Equation , Line , Variable , Line , Gradient , Point