Answer:15
Step-by-step explanation:
Answer: The number is 58.5
Explanation: 2/3=29 therefore 1/3=14.5. 14.5x3=43.5 which is the number after being decreased by 15, so after you add 15 back to it you get 58.5
Step 1: group Y on left side
(-2 - 3)y = -5y
step 2: group constants on left side
8 - 9 = -1
step 3: form modified equation
-5y - 1 = 11
step 4: group constants
-5y - 1 + 1 = -11 + 1
step 5: cancel 1 on left side
-5y = -10
step 6: divide each side by -5
-5y/-5 = -10/-5
answer: y = 2
Given:
63 tickets were sold.
Money collected = $742.
Evening tickets cost $14 each.
Matinee tickets cost $10 each.
Let
x = number of evening tickets sold
y = number of matinee tickets sold
Then
x + y = 63 (1)
14x + 10y = 742 (2)
From (1), obtain
y = 63 - x (3)
Substitute (3) into (2).
14x + 10(63 - x) = 742
4x + 630 = 742
4x = 112
x = 28
y = 63 - 28 = 35
Answer: 28 evening and 35 matinee tickets were sold.
Step-by-step explanation:
11!/9!
then we calculate ,
11×11+11×10+............+11×0/9×9+9×8+9×7+.....9×0
