divide both sides by 7 to get x alone
84/7 = 12
B.12
The fraction would be 37/87 which would be roughly 43%
So equal slices
total=x
she ate 4 slices from x so -4
x-4
she had 4 left
x-4=4
the equation would be x-4=4
Answer:
Martin has more cake than Sheena
Step-by-step explanation:
Chocolate Cake = 24 pieces
Vanilla Cake = 20 pieces
Martin: 3/24, 1/20
Sheena: 1/24, 2/20
Martin:
Step 1:
3/24 + 1/20
Step 2:
60/480 + 24/480 = 84/480
Sheena:
Step 1:
1/24 + 2/20
Step 2:
20/480 + 48/480 = 68/480
Martin has more cake than Sheena
Hope This Helps :)
Answer:
Step-by-step explanation:
Assume that f(x) = 0 for x outside the interval [4,7]. We will use the following
Standard deviation =
Mean =
Then,
Then,
Then the standard deviation is