12ft = 4 posts
4 x 4
=16 - 4
= 12
There is 4 post on each side but there is an overlap so you must take off 4 so there is no overlap
Therefore there are 12 posts
This is a mixture problem.
Let the 9 karat gold to be mixed be x. The 18 karat would weight (200 - x). Since the total = 200g.
mass1 * karat1 + mass2*karat = total mass * total carat
Let mass1 be x g. mass 2 would be = (200 -x)
karat 1 = 9 karat 2 = 18
Total mass = 200g.
Total karat = 14.
9*x + 18*(200 -x) = 14*200
9x + 18*200 - 18*x = 14*200
18*200 + 9x - 18x = 14*200
3600 - 9x = 2800
3600 - 2800 = 9x
800 = 9x
9x = 800
x = 800/9
x ≈ 88.89
Therefore 88.89 grams of 9 karat gold must be mixed.
Answer:
The answer after division is: 
Step-by-step explanation:
The given question involves two mixed fractions that are being divided.
First of all, we will convert the fractions into proper fractions
When the division is performed, the second fraction is reversed
So dividing gives us:
Hence,
The answer after division is:
Answer:
y=0 x=2
Step-by-step explanation:
Answer:
Step-by-step explanation:
](https://tex.z-dn.net/?f=%5Bx%28x%E2%88%922%29%2B6%28x%E2%88%922%29%5D%28x%E2%88%923%29)
<h3>Hope it is helpful....</h3>
