Answer:
Method: Roll, pick, and replace a marble 70 times. Count the number of times you... Roll greater than 2 and pick a yellow marble.
Step-by-step explanation:
Answer:
S= z (y-x)/(x+y)
Step-by-step explanation:
Lets the speed of high speed train = u
Lets the regular speed train = v
We know that
Distance = Speed x time
For high speed train
z = u .x
u= z/x ----------1
For regular speed train
z = v .y
v = z/y -------------2
Both are traveling in opposite direction so relative speed
Vr = z / x+ z /y
Lets in time t they will meet
z = (z / x+ z /y) t
t= xy/ (x+y)
Lets take distance cover by high speed train is m when it moves A to B and speed cover by regular train is n when it is moving B to A.They meet at time t.
m = u .t
m = z / x .xy/ (x+y)
m = zy/ (x+y) -----------3
n = v .t
n = z / y .xy/ (x+y)
n = zx/ (x+y) -----------4
From equation 3 and 4
So
m - n= zy/ (x+y) - zx/ (x+y)
S= z (y-x)/(x+y)
Option a is correct.
Answer:
X= Gracie
X+7.2=Hilda
X+7.2-11.4=Janell
(X+X+X+7.2+7.2-11.4)÷3=62.6
(3x+3)÷3=62.6
3X+3=187.8 (I arrive at 187.8 because I multiple 62.6 by 3)
3X=187.8-3
3X=184.8
3X/3=184.8/3
X=61.6
Step-by-step explanation:
GRACIE X=61.6
Hilda X+7.2=61.6+7.2=68.8
Janell X+7.2-11.4=61.6+7.2-11.4= 57.4
Answer:
40.32
Step-by-step explanation:
112 ÷ 100 = 1.12
1.12 × 36 = 4.032
This problem is stating that 12 should be added to the quotient of 12 and 13. Since PEMDAS is an expression ' golden rule, first you would divide 12 by 13 to get an approximate answer of 0.92. Then, you would add 12 to 0.92. The sum of 12 and 0.92 is 12.92.
