Zachary made a scale drawing of a house and its lot. The backyard is 6 inches long in the drawing. The actual yard is 2 feet long. What scale did Zachary use for the drawing?

4:1

Step-by-step explanation:

First we need to convert all measurements to the same unit.

So, if we convert the length of the actual yard of 2 feet to inches, we have that:

1 feet = 12 inches

2 feet = 2 * 12 = 24 inches.

Now, to find the scale used, we just need to divide the actual yard length by the drawing length:

scale = 24 / 6 = 4

So the scale used is 4:1

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10