The full price is represented by 100%. If this computer was decreased by 20%, so it worth 80% now.
So, we can make a rule of three: 80% value is equals to 136, how much is 100%?
80% ------------ 136
100% ----------- x
Let's multiply "making a x":
Therefore, the price before the decrease was £170.
Answer:
The original price is 170
Step-by-step explanation:
Let x be the original price
x* .20 is the decrease
x - .20x = new price
.80x = new price
.8x = 136
Divide each side by .8
.8x/.8 = 136/.8
x =170
28 ft
the 21st day
21 is 3 and 7's least common multiple
Answer: 2+q
50
35 - 12 + 13 + 39 - 25 = 50
7x+19 = 11x-89
-19. -19
7x= 11x-108
-11x -11x
-4x=-108
x=27