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yKpoI14uk [10]
3 years ago
13

A video store is offering 20% off all outdated videos. Let s be the original price of the purchase. Use the expression s-0.2s fo

r the new price of the purchase. Write an equivalent expression by combining like terms.
Mathematics
2 answers:
Alex Ar [27]3 years ago
8 0

Answer: The equivalent expression is:

new price = s*0.8

Step-by-step explanation:

When the original price of something is A, and we have X% off, the new price if that object will be:

New price = A - (X%/100%)*A

Like in this case, the original price is s, and the discount is 20%

Then the new price can be written as:

new price = s - (20%/100%)*s = s - 0.2*s = s*(1 - 0.2) = s*0.8

This is the equivalent expression we wanted to get.

 

pychu [463]3 years ago
5 0

Answer:

new price = s*0.8

Step-by-step explanation:

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