Answer:
9 students have braces
Step-by-step explanation:
honestly, you could just probably solve it mentally but we are going to make a proportion.

5*3 = 15; so you then multiply 3 by 3 and get 9 as your final answer
You can do 2 1/2 minus 1 1/8 to get 1 3/8. Your welcome and I hope you get a good grade
Answer:
1. (2,2)
2. (4,-2)
Step-by-step explanation:
Up and Down would refer to the Y coordinate while Left and Right would refer to the x coordinate. With this information we can determine that -1 up three units is 2 as -1 + 3=2, 5 left one unit is 4 and two down 4 is -2
Answer:
x= -2
Step-by-step explanation:
1.5(2x-4)=2(4x+2)
3x-6=8x+4
-5x=10
x= -2
The probability of a hand of 13 cards contains all 4 of one of the denominations, say Aces, is given by:

The same probability applies to getting all 4 of each of the other denominations.
Therefore the required probability is:

The answer is 0.0343.