You read: "A baker uses two blends of flour to make 100 pounds of dough." Which sketch and variable assignment best represents the mixture before writing equations?

Draw two separate, unconnected circles and label them x and y. Each should be set equal to 100 when solving, with no relation between them.

Write x + y = 200 right away, as a diagram is unnecessary for mixture problems and can obscure the underlying algebraic relationships.

Draw a single rectangle labeled "100 lbs." Divide it into two adjacent parts: label one part "x" (pounds of blend A) and the other "100 − x" (pounds of blend B).

Sketch a pie chart with three equal sectors and label each sector with the percentage of flour used. Do not assign variables, as the percentages will be estimated later.