A scale like the one shown is balanced when it has 18 1-pound bricks on one side and 3 equally sized pieces of gold on the other. How much does each piece of gold weigh?
Let each piece of gold weigh x lbs. And we have that
1 8 * 1 = 3 * x
And it's clear that each piece of gold must weigh 6 lbs
A line described by the equation y= 3/4x+4/7 in slope-intercept form. Identify the slope and y- intercept of the line.