Answer:
the answer is 6
Step-by-step explanation:
3×2-0×2=6
Anita can clean 1/8 portion of the pool in 1 hour
Chao can clean 1/6 portion of the pool in 1 hour
Both of them working together can clean 1/8 + 1/6 = 7/24 portion of the pool in 1 hour
Therefore, it will take both of the working together 1/(7/24) = 24/7 or 3 3/7 hours to clean a typical pool.
Infinite solutions. This equality is true for any value of n.
a.
The surface area is the sum of all the areas of all the shapes that cover the surface of the object
Find the area of each bases (a=length times width)
Method:
Simultaneous equations
Explanation:
First we will need to get both equations to have the same subject, to do this we will multiply the bottom equation by 2.
1) 2a-3c=-6
2) a+2c=11 x2
Becomes
2) 2a+4c=22
Now we will make both equations equal to the same subject (2a)
1) 2a=3c-6
2) 2a=-4c+22
Because they are both equal to 2a, they are therefore equal to each other, so:
3c-6=-4c+22
7c=28
c=4
Now substitute c back into either equation to get a:
a+2c=11
a+2(4)=11
a=3
