uzmanasuhaow3y0p
uzmanasuhaow3y0p
11-09-2017
Mathematics
contestada
x-y=40 and 80x+45y=2640
Respuesta :
ShayanSh
ShayanSh
11-09-2017
-80(x-y=40) = -80x+80y= -2400
***
80x+45y= 2640
+(-80x+80y= -2400)
= 125y = 240 =>
[y=240/125=1.92]
=> x -1.92 = 40 => [x = 41.92]
Answer Link
VER TODAS LAS RESPUESTAS ( 89+ )
Otras preguntas
Find the value x2 when x = 5
Which was the best example of cultural diffusion? 1) The ancient Romans worshipped gods similar to the Greeks. 2) Sparta and Athens had different forms of gover
Describe This plant cell has been sliced in help and you are looking into one of the halves. How would you describe the structure of the cell?
A phylogenetic tree can be constructed for (1 point) animals plants. animals and plants. animals, plants, and bacteria.
1. Simplify: ( √2 )^2 2. Simplify: √100 3.Simplify: √50 4. Simplify: √a^3 b^4 c^5 5. Simplify: √12x^6 y^2 z^7
Which of the following equations, in its simplest form, will be equivalent to 3x + 2 + (–5)? A. 2 + 3x + 5 B. x – 1 + x – 2 + x C. –3 – 3x – 1 + x D. 3 – 3x
What did the Union Army do to the men in that South Carolina unit and other units like it?
Use the text to determine how Lewis and Clark were supposed to treat the Natives that they met on the journey. "In all your interactions with the natives treat
Look at Obergefell v. Hodges, 576 U.S. 644 (2015). Who is the defendant? Who is the plaintiff? Is this a civil case or a criminal case? What court ultimately de
write a formal letter to your local government chairman requesting for some of the amenities your communication lack
