3 years ago

Solve the following: 1) The original cost of an umbrella was $28 but is now on sale for $21. Find the percent of the discount.

2 answers:

7 0

Answer:

Step-by-step explanation:

Alex73 [517]3 years ago

4 0

It’s a 4% discount off the original cost

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$\begin{gathered} a+ba=a+b\cdot a \\ a=-1,b=-2 \\ \Rightarrow-1+(-2)\cdot(-1)=-1+(2)=1 \\ \Rightarrow a+ba=1 \end{gathered}$

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3 years ago

Solve the following: 1) The original cost of an umbrella was $28 but is now on sale for $21. Find the percent of the discount.​