brentsway1
brentsway1
13-01-2014
Mathematics
contestada
solve using elimination, 2x+5y=2 3x-5y=53
Respuesta :
Аноним
Аноним
13-01-2014
2x + 5y =2
(+) 3x - 5y =53
-------------------------
5x + 0 = 55
Then finish it.
5x = 55
x = 11
Substitute x = 11,
2(11) + 5y = 2
22 - 2 + 5y = 0
20 + 5y = 0
5y = -20
y= -4
Answer Link
vivindalka
vivindalka
14-01-2014
2x+5y=2
3x-5y=53
---------------
+
2x+3x=2+53
5x=55 / : 5
x=11
x=11
3x-5y=53
x=11
3*11-5y=53
x=11
33-5y=53
x=11
-5y=53-33
x=11
-5y=20 / : (-5)
x=11
y=-4
Answer Link
VER TODAS LAS RESPUESTAS ( 62+ )
Otras preguntas
A business spends $14,000 to produce a new board game. Each game costs $1.90 to produce and is sold for $9.99. How many games must be sold before the business b
How many smaller rectangles are there in an area model that represents 27 x 83? Why? What are their dimensions?
Do all of the cells of your body divide at the same rate? Explain.
Why can we see objects in space? Like the Sun, stars, the moon and other planets.
Why shouldn't prince Edgar be be king?
How to factor 985xy +350x^2 +660y^2 by grouping?
How many tenths are in one whole
For an office job I need to pick 3 candidates put of a pool of 5. How many choices do I have?
From a pile of 100 pennies(P), 100 nickels(N), and 100 dimes(D), select 21 coins which have a total value of exactly $1.00. In your selection you must also use
why did cieza de leon admire the inca road system
