hogrefekelsey
hogrefekelsey hogrefekelsey
  • 04-04-2021
  • Mathematics
contestada

a first number plus twice a second number is 8 twice the first number plus the second totals 25

Respuesta :

barackodam barackodam
  • 04-04-2021

Answer:

The first number is 14

The second number is -3

Step-by-step explanation:

x + 2y = 8

2x + y = 25

Solving simultaneously,

2x + 4y = 16

2x + y = 25

On subtracting, we have

3y = -9

y = -3

Going to substitute for y, we have

x + 2(-3) = 8

x - 6 = 8

x = 14

Answer Link

Otras preguntas

The common ratio of a geometric series is 1/4 and the sum of the first 4 terms is 170. what is the first term of the series?
How does the structure of The Great Fire reinforce the central idea that there were not enough firefighters to handle the rapidly spreading fire?
What is the result of subtracting the second equation from the first? - 4x – 2y = -2 X - 2y = 9
evaluate square root 27 times square root 3
a quilt design has one large rectangle surrounded by four congruent rectangles, similar to the large rectangle. If the large rectangle has an area of 45 square
Verify the identity. tan(θ) sin(θ) + cos(θ) = sec(θ)
What did each of the big four want out of the treaty of versailles
b={y | y is an integer and -5 < y < -2}
Awan bought 3 litters of Apple juice he plans to drink all of it in 6 days drinking the same amount each day how many milliliters will away drink each day
Cecilia y Rafael están perdidos en Las ruinas. Completa su conversatíon.