Refer the attached image for the answer
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Step-by-step explanation:
Mean of the origibal set = 20
No. of terms = 10
Sum = Mean x No. of terms
= 20 x 10 = 200
The sum of additional numbers to make the new set of observstion is 4 + 8 + 12...... + 40 = 220
New Sum = 200 + 220 = 420
The no of terms stay the same
New Mean = New Sum/ N
= 420/10
= 42
Answer:
764-118=s
Step-by-step explanation:
The school has 764 students. Taking away the third graders will let you know how many are left in the other grades. Please marl brainliest.
Oh, and assuming you want the total number in each grade, 1-6? its (764-118)%5=s
Answer:
60%
Step-by-step explanation:
Given the council has a total of 95 members and that 57 members voted in favor.
-The percentage of those voting in favor is calculated as:
Hence, 60% of the members voted in favor of the tax.
Answer: 3x+1
Step-by-step explanation: you add the x value together & then you find the sum for 1,2, and -2