# Two numbers

Determine the numbers x and y so x + y = 8 is truth and the numbers are in the ratio of 4: 5.

Result

x =  3.556
y =  4.444

#### Solution:

x+y=8
5x = 4y

x+y = 8
5x-4y = 0

x = 329 ≈ 3.555556
y = 409 ≈ 4.444444

Calculated by our linear equations calculator.

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! #### To solve this example are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

## Next similar examples:

1. Number ratio Calculate two positive numbers that its ratio is 6:6 and difference was 0.
2. Two numbers Find two numbers whose difference and ratio is 2.
3. Football match 4 In a football match with the Italy lost 3 goals with Germans. Totally fell 5 goals in the match. Determine the number of goals of Italy and Germany.
4. Meat Half a kilogram of pork and three-quarters of a kilogram of beef cost total 5.1 USD. One quarter of a kilogram of beef and 1 kilogram of pork cost 4.9 USD. Determine the price of 1 kg of each type of meat.
5. The farmer The farmer had 140 sheep. For the next year, she decided to change the number of sheep in ratio 10: 7. How many sheep will he have then?
6. Translations If I going to translate the book 6 pages per day I translate it 4 days earlier than if I translated 5 pages a day. If I translate 4 pages a day I translate it for how many days.....?
7. Mother and daughter The ratio of years mother and daughter is 5:2. After 7 years the ratio is 2: 1. How many years ago daughter was born?
8. Unknown number Identify unknown number which 1/5 is 40 greater than one tenth of that number.
9. 1.5 divided 1.5 divided by 1 = w divided by 4
10. Boys and girls 2 The ratio of boys to girls in math club is 4:3 . After 8 more girls joined the Club, the ratio become 1:1. How many members are there in the club now?
11. Equation Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number.
12. Linear system Solve this linear system (two linear equations with two unknowns): x+y =36 19x+22y=720
13. Tickets On the football tournament ticket cost 45 Kc for standing and 120kč for sitting. Sitting spectators was 1/3 more than standing. The organizers collected a total 12 300 Kc. How many seated and standing seats (spectators)?
14. Spain vs USA Spain lost to the US by 4 goals. In the match total fell 10 goals. How many goals gave the Spain and how the United States?
15. Simple equation Solve for x: 3(x + 2) = x - 18
16. Boys and girls There are 48 children in the sports club, boys are 10 more than girls. How many girls go to the club?
17. Two trains There were 159 freight wagons on the railway station creating 2 trains. One had 15 more wagons than the other. How many wagons did each train have?