Arestaurant uses 80% of its oil in one week. they now have 28 quarts of olive oil left. how do you use a double number line to find the number of quarts the restaurant had at the beginning of the week

140 quarts of olive oil

Step-by-step explanation:

we know that

A restaurant uses 80% of its oil in one week.

They now have 28 quarts of olive oil left

so

28 quarts of olive oil correspond to the 20%

see the attached figure to better understand the problem

by proportion

Find out the the number of quarts the restaurant had at the beginning of the week (100%)

Let

x ----> the number of quarts the restaurant had at the beginning of the week

Complete the double number line attached

parallel and congruent

step-by-step explanation:

the movement of translation is linear.   these have the same translation because you are using the same rule for each point of the triangle so you will see the same slope being used to get from a point on the triangle to its image.

same slope!   you should think parallel when you see those 2 word together (well unless it's the same line but it can't be because we are coming from different points here)

congruent! because each point is being moved the same distance.

y=mx+