< Grace Williams's practice J.9 Scale drawings: word problems
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Valeria drew a scale drawing of a farm. The goat pen, which is 20 meters long in real life, is 5
millimeters long in the drawing. What is the scale of the drawing?
1 millimeter :
meters

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Find the maximum value of p= 4x + 5y subject to the following constraints :