Tarmarra21 Tarmarra21

03-03-2017
Mathematics

contestada

Solve the system of equations and choose the correct ordered pair.

9x - 2y = 73
5x - 9y = 9

Solve the system of equations and choose the correct ordered pair 9x 2y 735x 9y 9 class=

Respuesta :

Faaaith1 Faaaith1

03-03-2017

The answer is A (9,4)

Answer Link

wolf1728 wolf1728

03-03-2017

A) 9x - 2y = 73
B) 5x - 9y = 9
Multiply equation A by -5/9
A) -5x +1.1111111111 y = -40.5555555556 then add it to B
B) 5x - 9y = 9
-7.888888888 y = -31.555555555
y = 4

B) 5x - 9*4 = 9

B) 5x -36 = 9
B) 5x = 45
x = 9

Answer Link

Otras preguntas

Egdar Allan poem “the bells” 2. Look up tintinnabulation in a dictionary and an etymology dictionary and explain its meaning and history. How does the word affe

What is the name of this hydrocarbon? hexane O heptane O octane O pentane Mark this and return H H H H H ||||| H-C-C-C-C-C-H |||II H H H H H Save and Exit Next

Consider parallel lines cut by a transversal. Parallel lines q and s are cut by transversal r. On line q where it intersects line r, 4 angles are created. Label

Which of the following statements is true?

Which is the graph of f(x) = 100(0.7)?

decrease 2155.45 by 18.5 round 2dp

Examine Carmen's plans for rail lines at a train station. 2 (6x + 5)° X 48% What is the measure of angle 2? m/2 = K m (7x-4)° t

What is 43.808 in written form

Please Answer!!!! Which equation is balanced? A) H₂+ O2 → H₂O + O2 B) 4H2₂+ O2 → H₂O + O C) 2H₂ + O2 → 2H₂O D) H₂ + O2 → H₂O

state two factors that affect current carrying capacity of an accumulator