Bottle cost$.89 what is the total cost of 5 cartons if there are 12 bottles in each carton

Remark

1 carton contains 12 bottles

5 cartons contain 12 * 5 = 60 bottles.

Proportion

1 bottle costs 0.89

60 bottles cost x

1/60 = 0.89/x           Cross multiply

x*1 = 60 * 0.89

x = 53.40  <<<< Answer

step-by-step explanation:

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solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b