X = 2 + (x-2)sqrt
<=> x - 2 = (x - 2)sqrt
<=> x-2 = 0 OR x - 2 = 1
=> x = 2 OR x = 3
The answer is A. If you add all the numbers up at the top you will see the top of the box length is 52. Multiply 52 with 38 and you get 1976. The to find the surface area of the little boxes you do 10x16 which is 160. Since there are two little boxes you add them to be 220. Then add 220 with 1976 to get the final answer.
So,
5 - 9w = 1 + 3w
Add 9w to both sides (for convenience).
5 = 1 + 12w
Subtract 1 from both sides.
4 = 12w
Divide both sides by 12.
S = {
}
Answer:
Room 107 and room 101 have an equal ratio of boys and girls.
Step-by-step explanation:
12 to 9 is 4:3 simplified and 16 to 12 is also 4:3 simplified.