I think all you need to do is rise/run, in this case, 2420÷6050=0.4=40%
Answer:
The scores within one standard deviation of the mean are: 77, 79, 80, 83, 87, 88
Step-by-step explanation:
The mean of the data is 83 and the standard deviation is 6.5, find scores within 1 standard deviation of the mean:
Between
83 - 6.5 = 76.5
83 + 6.5 = 89.5
So:
The scores within one standard deviation of the mean are: 77, 79, 80, 83, 87, 88
<u>⇨ By prime factorization method:</u>



Answer:
$176
Expression: (12*3)+(70*2)
Step-by-step explanation:
The 3 hair brushes: $12*3= $36
The 2 hair straighteners: $70*2=$140
$140+$36=$176