Mathematics, 27.11.2020 19:20 unicornsflyhigh

PLEASE HELP Directions; Write a system of equations for each of the descriptions below, and then solve the systems. Hint: you can graph the equations to find the solutions.
16. Three times one number is equal to two times the larger one and their difference is 1. What are the numbers?
17. Joseph has 30 coins and they are all either dimes or nickels. The total $2.15. How many dimes does he have?
18. A golfer completed 18 holes with a total of 79 strokes. On each hole he met par, which was either four or five each time. How many holes were played in four strokes?
19. There are two numbers. The difference between them equals six, and one of the numbers is three times the other number. There are two pairs of numbers that satisfy these descriptions, What are they?
20. There is a number that is three-fifths the total of the other number. When four is added to one of the numbers their sum will be equal to the other number. There are two pairs of numbers that satisfy these descriptions. What are they?

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 12:30

The highest common factor of 132 and 220

Answers: 1

Answer

Mathematics, 21.06.2019 13:40

Vip at (-2,7) dropped her pass and moved to the right on a slope of -9 where can you catch up to her to return her vip pass

Answers: 1

Answer

Mathematics, 21.06.2019 17:30

Asphere has a diameter of 10 in. what is the volume of the sphere?

Answers: 1

Answer

Mathematics, 21.06.2019 18:30

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

Answers: 1

Answer

You know the right answer?

PLEASE HELP Directions; Write a system of equations for each of the descriptions below, and then so...

Questions