Separate $90 into two parts so that the second part is $30 less than twice the first part.
A fashion designer makes and sells hats. The material for each hat costs $5.50. The hats sell for $12.50 each. The designer spends $1400 on advertising. How many hats must the designer sell to break even?
Maria has a piggy bank at home full of nickels and dimes. She has $14.75 in the bank. there are 20 more dimes than nickels. How many of each type of coin are in the piggy bank?
Hilary has three times as much money as Paul. Jeff has $4 dollars less than Hilary and $5 more than Paul. How much does each have?
A man has 25 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 370 cents, how many dimes and how many quarters does he have?
Josh rented a truck for one day. There was a base fee of $16.95, and there was an additional charge of 82 cents for each mile driven. Josh had to pay $185.87 when he returned the truck. For how many miles did he drive the truck?
A motel in Florida charges $90 per day for double occupancy and $80 for single occupancy. If 80 rooms are occupied for a total of $6930, how many rooms of each kind are occupied?
John has 21 paper bills consisting of $20, $50, $100. He has twice as many $50 bills as $20 bills and has a total amount of 1380. How many of each type of bill does John have?
Andy has 17 coins made up of quarters and half dollars, and their total value is $7.25. How many quarters does he have?
Lauren has a total of two hundred seventy pennies, nickels, and quarters. She has a total of $17.10. She has two times as many nickels as quarters and one-third as many quarters as pennies. How many of each coin does she have?