StephaniePula
StephaniePula StephaniePula
  • 03-04-2020
  • Mathematics
contestada

What two numbers added equal 40 but when subtracted equal 10?
PLZ!!!!!!!!!!!!!!!!!!!! HELPPPPPPPPPPPPPPPPPPPP

Respuesta :

SaltySpark
SaltySpark SaltySpark
  • 03-04-2020

Answer:

25 and 15

You can easily make a system of equations:

x + y = 40

x - y = 10

Solving for x on equation 2 gets x = 10 + y.

Plugging in this into the first equation, you get 10 + y + y = 40

Thus, 10 + 2y = 40

y = 15.

Plugging this back into either equation gets x = 25.

Answer Link

Otras preguntas

What impact did the Brown vs Board of Education trial have on the Civil Rights Movement?
how are the Cultures is in South America like the cultures in Mexico.
please l need help with this system of equation. Solve the system by the method of substitution. 3/2× +3/4y =16 3/4×-y =4 (×,y)=?
Which sentence is correctly punctuated? A. Sharon Day, the violinist played beautifully tonight. B. Sharon Day the violinist played beautifully tonight. C. Shar
what plus what equals 11 and what times what equals 30
round 8.373 to the nearest hundredth
The two main philosophies in state politics are _____. A)liberalism B)rationalism C)materialism D)conservatism
Species is a(an)_________ specific level of classification than domain.
How do you write 120% as a fraction, mixed number, or whole number in simplest form
Which of the following locations is the world's most populated urban center? Tokyo Shanghai Hong Kong Seoul