If a brick weighs exactly as much as a 9-pound rock plus falf of another brick, what does a brick and a half weigh?
Assuming all the bricks are alike, the 2nd brick will also weigh 9 pounds so take 1/2 of that and add it to the weight of the first brick.
Sra
Don't forget that you are looking for the weight of 1.5 bricks...
27
To find out the weight of a brick and a half, let's break down the information provided. We're given that a brick weighs the same as a 9-pound rock plus half of another brick.
Let's represent the weight of a brick as "B" and the weight of another brick as "C" (since we don't know its weight yet).
From the given information, we can form an equation:
B = 9 + (1/2)C
To find the weight of a brick and a half, we need to add the weight of 1 brick (B) to the weight of half a brick (1/2B).
Brick and a half weight (B + 1/2B):
= B + (1/2)B
= 3/2B
Now we substitute the value of B from the equation into 3/2B:
= (3/2) * (9 + (1/2)C)
= (3/2) * 9 + (3/2) * (1/2)C
= 27/2 + 3/4C
Therefore, a brick and a half weighs 27/2 pounds + 3/4 times the weight of another brick (C).