solve each problem by setting up and solving a system of two equations and two unknowns or a system of three equations and three unknowns. After an evening of selling flowers, a vendor had collected 64 bills consisting of five-dollar bills, ten-dollar bills, and twenty-dollar bills, which amounted to $620. The number of ten-dollar bills was three times the number of twenty dollar bills. Find the number of each kind of bill.

Q: Isaiah weighs 10 pounds more than his friend Geoff. If the sum of their weights is 360 ​pounds, how…

A: Let x be Geoff’s weight in pounds. It is given, Isaiah weighs 10 pounds more than Geoff. Then…

Q: A cell phone company offers two texting plans. Plan A offers $2 monthly fee plus 10 cents for each…

A: Given ,  Plan A offers $2 monthly fee plus 10 cents for each text sent or received. Plan B offers…

Q: Allison owns a trucking company. For every truck that goes out, Allison must pay the driver $11 per…

A: A system of linear equations can be solved to find out the unknown variables.

Q: A textbook story sold a combined total of 333 math and psychology textbooks in a week. The number of…

A:

Q: A theater owner wants to divide a 4500 seat theater into three sections, with tickets costing $30,…

A: Let's define the variables as follows: x = number of $30 seatsy = number of $50 seatsz = number of…

Q: A restaurant sells two sizes of orders of french fries. On Monday, they sold 5 large orders of fries…

A: Given,           A restaurant sells two sizes of orders of french fries. On Monday, they sold 5…

Q: One week, Abigail earned $396.80 at her job when she worked for 16 hours. If she is paid the same…

A:

Q: One week a computer store sold a total of 36 computers and external hard drives. The revenue from…

A: Lets assume x represents the number of computers sold. And y represents the external hard drives…

Q: Charles and Dan had an equal number of apples. After Charles sold 180 apples and Dan sold 108…

A:

Q: A store is having a sale on chocolate chips and walnuts. For 2 pounds of chocolate chips and 3…

A: If you have any questions let me know in comment box thankyou for your question.