3n² - 8n + 4
3n² - 6n - 2n + 4
(3n - 2)(n - 2)
Answer:
the wall lenght is 90
Step-by-step explanation:
you know the scale factor is 1/5 so you take the lenght of the drawing and multipy it by 5.
10/100 = x / (810+x)
1/10 = x / (810 + x)
10x = 810 + x
9x = 810
x = 90 g salt
mass of solution = mass of water + mass of salt
ms = mw + m salt
ms = 810 + 90
ms = 900 g of solution
Answer: 3/5 as a decimal is 0.6
