The cost of a babysitting service is $8 for the first hour and $10 for each additional hour. If the total cost of babysitting Josue is $58, how many
hours TOTAL was Josue with the babysitter?

6 hours

Step-by-step explanation:

8 dollar - 1st hour = 8

10 dollar times 5 hours= 50dollar

total - 58 dollars for 6hours

she was with the babysitter for 6 hours.

Step-by-step explanation:

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