Answer: 5 children
Step-by-step explanation: The first step is to divide 1221 by 32, and that will yield 38.15625. To find out what that .15625 is, I used this equation
1225 - (38 (the whole number version of the last answer) x 32 (what we initially divided by))
Answer:
10π ft^2
Step-by-step explanation:
Answer:
He earned $9.25
Step-by-step explanation:
First, you have to create an equation.
346.88= 37.5h
Then divide 346.88 by 37.5
You get 9.25=h
Rodrick earned $9.25 per hour.
Answer:
75kg
Step-by-step explanation:
Decrease =25÷100×100kg
= 0.25×100kg
= 25kg
Decrease 100kg by 25%=100kg-25kg
= 75kg
Answer:
Range = 13
Mean = 8.4
Variance= 21.24
Standard deviation= 4.61
Step-by-step explanation:
2, 10, 15, 3, 13, 9, 14, 7, 2, 9
For the range
Let the set of data be arranged inn ascending order
Range= higehest value- lowest value
Range = 15-2
Range= 13
For the mean
Mean = (2+2+3+7+9+9+10+13+14+15)/10
Mean = 84/10
Mean = 8.4
For variance
Variance=((2-8.4)²+(2-8.4)²+(3-8.4)²+(7-8.4)²+(9-8.4)²+(9-8.4)²+(10-8.4)²+(13-8.4)²+(14-8.4)²+(15-8.4)²)/10
Variance= (40.96+40.96+29.16+1.96+0.36+0.36+2.56+21.16+31.36+43.56)/10
Variance= 212.4/10
Variance= 21.24
Standard deviation= √variance
Standard deviation= √21.24
Standard deviation= 4.609
Approximately = 4.61