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3 years ago

The original price P of an item less a discount of 20% ?

Mathematics

2 answers:

galben [10]3 years ago

8 0

Answer:

0.8 P

Step-by-step explanation:

Let the origional price of P

A discount of 20% is given on the item

The price of item=[P(100-d)]÷100

The price of the item= $\frac{p(100-20)}{100}$

The price of the item= $\frac{p(80)}{100}$

The price of the item= 0.8 P

If the discount 20% is given on origional price of the item, than the price will be 0.8 P

Hence, the correct answer is 0.8 P

Step2247 [10]3 years ago

7 0

You would calculate the price by multiplying the original price by 0.80
P(0.80)

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The graph is shown in figure below

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Step-by-step explanation:

We need to graph the equations and writ the solution.

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Now put value of x in eq(1) to find value of y:

$2x + 1 = y\\2(-2)+1=y\\-4+1=y\\y=-3$

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Plotting on graph: x=-2 and y = -3

The graph is shown in figure below

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Keywords: graph the equations

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