Answer:
4:3
Step-by-step explanation:
The ratio is 20 girls to 15 boys as it says 20:15 ,
but this is simply 4 parts to 3 parts or 4:3
6/(2/3)=
6*3/2=
18/2
6 division of (2/3)
you invert 2/3 to 3/2 and then multiply 6*3 and divide it by 2
It is better to graph these points, to easily understand that the distance of the two points form the hypotenuse of the right triangle. We need to use the Pythagorean theorem to solve for the distance of the two points.
a² + b² = c² ; a = x value ; b = y value
1) (3,8) and (-9,-8)
a = 3 - (-9) = 3 + 9 = 12 ⇒ 12² = 144
b = 8 - (-8) = 8 + 8 = 16 ⇒ 16² = 256 ⇒⇒ 144 + 256 = 400 ; c = √400 = 20
2) (2,6) and (5,2)
a = 2 - 5 = 3 ⇒ 3² = 9
b = 6 - 2 = 4 ⇒ 4² = 16 ⇒⇒ 9 + 16 = 25 ; c = √25 = 5
3) (21,16) and (9,11)
a = 21 - 9 = 12 ⇒ 12² = 144
b = 16 - 11 = 5 ⇒ 5² = 25 ⇒⇒ 144 + 25 = 169 ; c = √169 = 13
Answer:
13 1/3 is the answer
Step-by-step explanation:
5/3 ×8 =40/3=13 1/3
