Answer:2
Step-by-step explanation:
So, the ration is 17:3, you know that. Therefore, the change from # of students to the 17 is the same change as # teachers to 3. Knowing this, you also know that the total # of people ihas the same change as the total ratio. So 17+3 = 20. 740/20 = 37. So the change is 37. 3x37= 111 17x37=629
You can check to make sure this answer is correct by adding the two final numbers. 111+629 = 740. (Some find it easier to see lined up really pretty)
17 -- 3 total 20
x -- y total 740
Or, if you are visual, look at the picture I drew:
L=3W, H=2L, so H=6W
Since W=7, the dimensions would be:
W=7in, L=21in, H=42in
The surface area of any rectangular prism is:
A=2(LW+LH+WH), and since W=7, L=21, H=42
A=2(21*7+21*42+7*42)
A=2(147+882+294)
A=2(1323)
A=2646 in^2
The volume would be:
V=LWH, since L=21, W=7, H=42
V=21*7*42
V=6174 in^3
You question didn't really specify what you were looking for, so I did the best I could, if you need more info, just ask in the comments. :)
Answer:
A.
Step-by-step explanation:
The expression (1/4) * d + 7 really just means "one-fourth times d, plus 7"
Option A says the same expression, as we know that the product means multiplication, and that we add 7 at the end. For this reason, it is the correct response.
I hope this helps!