Answer: 40%
Step-by-step explanation: The total number of pizzas is 12 + 18 = 30. Mitchel bought 12 of those 30 pizzas. To find the percentage you do the portion/total. Thus 12/30 = 0.4, as a proportion. To turn a proportion into a percentage simply multiply by 100. 0.4 * 100 = 40%
Answer:
Step-by-step explanation:
3-x-3x=5
first combine like terms
3-4x=5
-4x=2
divide each side by -4
x=2/-4 or -1/2 or -0.5
Answer:
n = 185/9
Step-by-step explanation:
(6n-25) + (3n + 20) = 180
Combine like terms
9n -5 = 180
Add 5 to each side
9n - 5 +5 = 180+5
9n = 185
Divide each side by 9
9n/9 = 185/9
n = 185/9
A) 3n+4= 7n
B) 4n-5= -1n
You do a normal equation just add the N
Answer: 104 degrees
Step-by-step explanation:
