A pillow that usually costs $18 is marked down 25%. Use the table to find the pillow’s new price.

Fill in the missing amounts to solve the problem.

100 percent is an 18 dollar original price, 25 percent markdown is a, and new price is b.

a =
b =

In this case we can propose a rule of three:

$ 18 > 100%

x > 25%

Where x represents the discount made to the pillow:

So we have the new price (with the discount) is:

In addition, if 25% is discounted we have to, the price of the pillow is 75% of the original price. That is to say:

Step-by-step explanation:

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

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