Your computer crashed, and the final bill was $256.50. the new computer components cost $99, and the
charge for the technician's labor is $45 per hour. write an equation to model this situation, then
solve the equation for the number of hours the technician worked on your computer.

99+45x the technician worked on your computer for 3.5 hours

Step-by-step explanation:

256.50-99=157.50 that is the total cost of labor as you take the cost of the parts out of the equation. 157.50/45=3.5 as that is how much labor costs so we now know how long it took him to work on the computer. we don't include the total cost into the equation as this would be a final answer and we need the expression to get the final answer. the expression would be (cost of parts)-(cost of labor)(hours worked)=(total cost)

$256.50=99+45^x

Step-by-step explanation:

$256.50-$99=315/2=157.5

157.5÷$45=7/2=3.5

the size of the resulting matrix is 1-by-3.

step-by-step explanation:

the size of the two matrices given are as follows:

no .of rows of matrix 1 = 1

no .of columns of matrix 1 = 3

no .of rows of matrix 1 = 3

no .of columns of matrix 1 = 3

to find the size of the resulting matrix without actually solving the multiplication of the matrix, this is what you do:

if resulting matrix = matrix 1 * matrix 2

no. of rows of the resulting matrix = number of rows of matrix 1

no. of columns of resulting matrix = number of columns of matrix 2

note: the order of the matrices matter!

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844