so 難しいポイントが必要です
Step-by-step explanation:
さようなら.
Answer:
It's A
Step-by-step explanation:
You have to subtract 40 from both sides
Then divide both sides by 8
And then you have your answer.
Answer:
X = 12
4x + 12 = 5x
subtract 4x on each side and you're left with x=12
To solve the problem posed in the statement we need to know the equivalence between squared foot and squared inches, and that is:
1 square foot = 144 square inches
So Reed uses 8 pieces of glass per 144 squared inches as well.
Now we can use a rule of three, simple and direct proportion to solve the question, it goes like this:
144 squared inches ------> 8 pieces glass
864 squared inches ------> x
x = (864)(8)/144
x = 48
Hence, Reed will use 48 pieces of glass to make a window that is 864 square inches.
