Hats and mittens are on sale at the store! One woman was able to buy 5 hats and 4 pairs of mittens for $30.
1 answer:
The price of one hat is $2 and price of one pair of mittens is $5.
Step-by-step explanation:
Let,
Price of one hat = x
Price of one pair of mittens = y
According to given statement;
5x+4y=30 Eqn 1
2x+3y=19 Eqn 2
Multiplying Eqn 1 by 2
Multiplying Eqn 2 by 5
Subtracting Eqn 3 from Eqn 4
Dividing both sides by 7
Putting y=5 in Eqn 1
Dividing both sides by 5
The price of one hat is $2 and price of one pair of mittens is $5.
Keywords: linear equation, subtraction
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Answer:
Group A has greater variability
Step-by-step explanation:
Group A: 80, 100, 190, 110, 70, 90, 130
The variability of group A data :
Taking the range :
Maximum = 190 ; Minimum = 70
Range = Maximum - Minimum ; 190 - 70 = 120
Group B : 50, 110, 100, 120, 107, 140, 150
The variability of group B data :
Taking the range :
Maximum = 150 ; Minimum = 50
Range = Maximum - Minimum ; 150 - 50 = 100
Hence, Group A has greater variability
