Answer:
Step-by-step explanation:
Hello,
Shall we begin?
5y + 9 = - 2y + 30
5y + 2y = 30 - 9
7y = 21
y = 21/7
y = 3
<span>Answers: y = 3</span>
To get second discount, 90% of the price must be > $100
hence 90% of 199.99 = 199.99/100*90 = $179.991 (Price after 1st discount)
Since the price after first discount is > $100 , it is eligible for second discount.
Price after 2nd discount of 10% = 179.991/100*90 = $161.9919
Savings = 199.99-161.9919 = 37.9981 = 38 dollars saved.
*note, you Do Not -20% straight from original price as it says 10% After first discount.
A 10 = 10;
a 20 = 40;
a n = a 1 + ( n - 1) * r => 10 = a 1 + 9 * r, and, 40 = a 1 + 19 * r => 30 = 10 * r => r = 3 => a 1 = 10 - 27 => a 1 = -17;
a 100 = a 1 + 99 * r => a 100 = - 17 + 99 * 3 => a 100 = -17 + 297 => a 100 = 280.
You still need to raise 1,676 to complete the 14,000
