Let the number be x
The sum of 2 equal numbers is simply x+x or 2x.
The constant term in the equation is -20 because you will always be subtracting 20 no matter how big x is
Answer:
€99
Step-by-step explanation:
The computation of the original price (before the rebate) of this pair of shoes is shown below:
Given that
The cost of pair of shoes is € 69.30 i.e. after 30% discount
So, the original price would be
= € 69.30 × 100 ÷ 0.70
= €99
The € 69.30 shows the 70% value according to this we determine 100% value
Answer is square root of 39
