Ben Frank is an electrician who installs lighting fixtures. He charges his clients 15 h+40 f dollars, where h is the number of hours worked and f is the number of fixtures installed. What is the amount, in dollars, Ben Frank charges when he works 7 hours and installs 9 fixtures?

Question

Ben Frank is an electrician who installs lighting fixtures. He charges his clients  15 h+40 f dollars, where  h is the number of hours worked and  f is the number of fixtures installed. What is the amount, in dollars, Ben Frank charges when he works 7 hours and installs 9 fixtures?

Bytelearn · Accepted Answer

Identify Given Values: Identify the given values for the variables in the expression. Ben Frank charges 15h + 40f dollars, where h is the number of hours worked and f is the number of fixtures installed. We are given that h = 7 (hours) and f = 9 (fixtures).Substitute Given Values: Substitute the given values into the expression. The expression for the charge is 15h + 40f. We substitute h with 7 and f with 9. 15(7) + 40(9)Perform Multiplication: Perform the multiplication for each term. Calculate 15 times 7 and 40 times 9. 15(7) = 105 40(9) = 360Add Results: Add the results of the multiplications to find the total charge. Add 105 and 360 to get the total charge. 105 + 360 = 465

Ben Frank is an electrician who installs lighting fixtures. He charges his clients $15 h+40 f$ dollars, where $h$ is the number of hours worked and $f$ is the number of fixtures installed. What is the amount, in dollars, Ben Frank charges when he works $7$ hours and installs $9$ fixtures?

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