# Banknotes

$1390 was collected. How much was in$20 notes and how many in $50 notes in that order? How many solutions exists? ### Correct answer: n = 3 ### Step-by-step explanation: Did you find an error or inaccuracy? Feel free to write us. Thank you! Tips to related online calculators Do you have a system of equations and looking for calculator system of linear equations? Do you solve Diofant problems and looking for a calculator of Diofant integer equations? #### You need to know the following knowledge to solve this word math problem: ## Related math problems and questions: • Two math problems 1) The sum of twice a number and -6 is nine more than the opposite of that number. Find the number. 2) A collection of 27 coins, all nickels, and dimes, is worth$2.10. How many of each coin are there? The dime, in United States usage, is a ten-cent coin.
• Banknotes Eva deposit 7800 USD in 50 banknotes in the bank. They had a value of 100 USD and 200 USD. How many were they? Laco went (was sent) to a conference in Amsterdam for a reward. The conference fee was € 2536. Calculate how many books Ladislav could buy at the price of 46 and 54 euros if he doesn't want to fill the whole home library, and he can buy only 52 books Four pupils divided $1485 so that the second received 50% less than the first, the third 1/2 less than a fourth, and fourth$ 154 less than the first. How much money had each of them? If the Canadian dollar appreciated by C$0.005 relative to the US dollar, what would be the new value of the Canadian dollar per US dollar? Assume the current exchange rate was US$1 = C$0.907. • Alloy The first alloy is a mixture of two metals in the ratio 1:2, the second is a mixture of same metals in the ratio 2:3. At what ratio we have these two alloys put into the furnace to obtain a new metal alloy with ratio 17:27? (All three ratios correspond to • Solution What amount of 80% solution and what amount of water is needed to mix in order to obtain two liters of 60% solution of this mixture? • A fisherman A fisherman buys carnivores to fish. He could buy either 6 larvae and 4 worms for$ 132 or 4 larvae and 7 worms per $127. What is the price of larvae and worms? Argue the answer. • Saving 9 An amount of$ 2000 is invested at an interest of 5% per month. If $200 is added at the beginning of each successive month but no withdrawals. Give an expression for the value accumulated after n months. After how many months will the amount has accumula • Metal alloy What is the ratio of metals in the alloy that is in the 50 tonnes of steel to 30 kg nickel? • Diofant equation In the set of integers (Z) solve the equation: 212x +316y =0 Write result with integer parameter t in Z (parameter t = ...-2,-1,0,1,2,3... if equation has infinitely many solutions) • Four integers Fnd four consecutive integers so that the product of the first two is 70 times smaller than the product of the next two. • Cottages The summer camp is 41 cottages. Rooms are for three and four in them. How many of the 140 campers lives of three? • Loan If you take a bank loan$ 10000 and we want to repay after the year, we have to pay the total amount \$ 10320/ What is the annual interest rate on this loan? At the summer camp, there are 41 chalets. Some rooms are 3-beds, some 4-beds. How many campers from 140 are living in 3-bed? Two integers, a and b, have a product of 36. What is the least possible sum of a and b? In 2:1 mix wine solution cost 4.1 USD. In 1:2 mix wine solution cost 4.5 USD. How much cost liter of each wine?