cassandrad21 cassandrad21
  • 02-12-2019
  • Mathematics
contestada

One number is seven more than twice another . If their sum is decreased my ten the result is twelve. Find the numbers

Respuesta :

DaGreatPotato DaGreatPotato
  • 02-12-2019

Answer:

5, 17

Step-by-step explanation:

For this problem, you need to create a system of equations.

We can name one number x and the other y.

First equation: 2x + 7 = y

Second equation: x + y - 10 = 12, or x + y = 22.

We know y = 2x + 7, so we can substitute that into the second equation.

x + 2x + 7 = 22.

3x = 15

x = 5.

Plug x back into the first equation:

2 · 5 + 7 = y.

y = 10 + 7

y = 17.

Answer Link

Otras preguntas

Subjects that are part of a compound subject must have the same verb True or False?
the distance around earth at the equator and through the north and south poles are shown at the right . how many miles would you travel if you circled earth alo
solve for h in this equation: 12=1/2h (2 1)
Identity what type of chemical reaction this is: HCN + KOH ⇌ KCN + H2O dissolution acid-base precipitation oxidation-reduction
who was the first black woman president in america
You're attempting to determine the amount of usable floor space in your day care facility. Which one of the following areas can you include in your calculation?
Which statement best describes the difference between speed and velocity? A. Velocity is speed with a direction. B. Speed is velocity with a direction. C. Veloc
True or False: A credentialistic meritocracy is dependent upon the utilization of ascriptive variables and why?
what is 4:38 25 minutes
In the United States what tends to influence a persons level of prestige?