Answer:
400 gumballs are in the gumball machine
Step-by-step explanation:
75% = 300 gumballs
Find 1%:
1% = 300 ÷ 75 = 4 gumballs
Find 100%:
100% = 4 x 100 = 400 gumballs.
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Answer:
C
Step-by-step explanation:
It is not A or B because the line is not dotted.
It is not B or D because y should be greater than x
So it is C
Because <span>−8</span><span> does not contain the </span>variable<span> to solve for move it to the other side of the </span>equation<span> by adding </span>8<span> to both sides.
</span><span>5x=8+37
</span>Add 8<span> and </span>37<span> to get </span><span>45.
</span><span>5x=45
</span>Divide<span> each </span>term<span> by 5.
</span>x=<span>9
</span>
x is equal to 9
Answer is 11
Just trust me
The variance is the total of the squared distances of the given data from the mean.
This can be calculated through the equation,
σ² = summation of X² / N - μ²
where σ² is the variance X's are the data, N is the number of terms, and μ is the mean.
summation of X² = 100² + 100² + 120² + 120² + 180² = 81200
N = 5
μ = (100 + 100 + 120 + 120 + 180) / 5
μ = 124
Substituting these values to the equation for variance,
σ² = (81200/5) - 124² = 864
Thus, the variance is equal to 864.
