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Sidney Mcclain
Mathematics
4 August, 21:38
7. 11, 12, 5, 3, x; mean 7.4
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Marcos Olson
4 August, 21:50
0
x=6
Step-by-step explanation:
Mean is another word for average. It is found by adding up all of the values, and dividing that number by the amount of values you added together.
You have 5 values that get a mean or, average, of 7.4
1) We can write this as the following:
(11+12+5+3+x) / 5=7.4
2) To solve, multiply both sides by 5:
11+12+5+3+x=37
3) Now combine all of the numbers on the left:
31+x=37
4) Now subtract 31 from both sides:
x=6
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Jensen Sparks
4 August, 21:56
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6.4
Step-by-step explanation:
Multiply 7.4 x 6
them subtract all numbers from it and you end up with 6.4
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