Answer: 15
Step-by-step explanation:
Average is sum of scores/ number of scores, from the question, average is given as 15.
Let the missing score be x
Equation for the questionis represented as: 12 + 18 + x /3 = 15
30 + x /3 = 15
Cross multiply
30 + x = 15×3
30 + x = 45
Subtract 30 from both sides
30 + x -30 = 45 -30
x = 15.
Check:
12 + 18 + 15/3 = 15
45/3 = 15
I hope this is clear, please mark as brainliest answer
Answer:
x=(-9)
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
(−2/3)(9+x)=0
(−2/3)(9)+(−2/3)(x)=0(Distribute)
−6+−2/3x=0
−2/3x−6=0
Step 2: Add 6 to both sides.
−2/3x−6+6=0+6
−2/3x=6
Step 3: Multiply both sides by 3/(-2).
(3−2)*(−2/3x)=(3−2)*(6)
x=−9
Answer:
8/7
Step-by-step explanation:
The Numerator is bigger than the denominator which in turn can be converted to a mixed fraction.
Answer:
0.364
Step-by-step explanation:
Can I see like a picture or what do do I need to do like more info
