nightcoresingsforyou
nightcoresingsforyou nightcoresingsforyou
  • 15-07-2020
  • Mathematics
contestada

If Davis buys 10 notebooks, then he will have $10 left over. If he tries to buy 15 notebooks, then he will be $10 short. How much money does Davis have? ASAP

Respuesta :

laterwalle
laterwalle laterwalle
  • 15-07-2020

Answer:

$ 50

Step-by-step explanation:

c =cuadernos

x= dinero davis

10c+10=x

15c- 10=x

10c+10=15c- 10

20=5c

c=4

=>10(4)+10=x

x=50

15(4)- 10=x

x==50

reeasy =)

Answer Link

Otras preguntas

Ants communicate with chemicals called a. silica. b. metronomes. c. biomes. d. pheromones
Why was the Dudley castle built?
How do you factor k^2-k-56
If the edges of a cube add up to 4 feet in length, what is the volume of the cube?
What is "la pista de pogo" mean in Spanish
A child throws a ball up in the air to a height of 3.5 m and catches it at the same point from which he threw it. The ball is in the air for a total of 1.7 s. W
Substitution method 1) 3x + y = 7 4x + 2y = 16 2) 2x + 2y = 4 X - 2y = 0
What does it mean to say that momentum is conserved?
Ants communicate with chemicals called a. silica. b. metronomes. c. biomes. d. pheromones
Skeletal muscles need a rich blood supply to provide them with a. oxygen. b. carbon dioxide. c. water. d. none of the above