17-05-2017
Mathematics

contestada

solve the system of equations 5x + 2 y equals 12 5 x - 2 y equals 28

Respuesta :

24-05-2017

5x+2y=12 5x+2y=12
5x-2y=28 5(4)+2y=12
2y=12-20
10x=40 2y=-8
x=40/10 y=-8/2
x=4 y=-4

Answer Link

Otras preguntas

Wade can paint a certain room in 7 hours. Rhonda can paint the same room in 5 hours. How long will it take them working together to paint the room? Round your a

How was the Queen of Hawaii?

Genetic engineering is used in the biotechnology industry to? (1) eliminate all infections in livestock (2) synthesize hormones such as insulin and human growt

1) what is the meaning of commutative property?2)what is the meaning of distributive property?3)what is the meaning of associative property?

If p+q+r = 1 and pq+qr+pr = -1, and pqr = -1, find the value of [tex] p^{3}+ q^{3}+ r^{3} [/tex]

express each as a single power of 2...2^a X 2^b X 2^c2^a+b X 2^a-b

what is the KE of a 1 kg ball traveling at 20 meters per second?

Genetic engineering is used in the biotechnology industry to? (1) eliminate all infections in livestock (2) synthesize hormones such as insulin and human growt

Compare Ponyboy and Cherry Valance

express each as a single power of 2...2^a X 2^b X 2^c2^a+b X 2^a-b