harukorigaux harukorigaux

04-05-2021
Mathematics

contestada

Can someone help me pls? I don't understand how to find x and y

Can someone help me pls I dont understand how to find x and y class=

Respuesta :

mthmatics mthmatics

04-05-2021

(Y+40)+(x+2y)=180
3y+x=140

2x+(y+20)=180
2x+y=160

Simultaneous equation
3y+x=140
Y+2x=160
Solve for y
Y=24
3(24)+x=140
X=140-72=68

not sure about the answer

Answer Link

Otras preguntas

Mixture or pure substance: 1.water 2.blood 3.the oceans 4.iron 5.brass 6.uranium 7.wine 8.leather 9.table salt (NaCl)

Which substance is the reducing agent in this reaction? 2KMnO4+3Na2SO3+H2O→2MnO2+3Na2SO4+2KOH

How Do I convert 3pi/4 to degrees?

Please Help!!! Simplify 5^8 · 5^-4

The Respiratory System contains which of the following body parts? Heart, lungs and mouth Ear, nose and throat Nose, trachea and lungs All of the above

What are nPr and nCr? How are they used in probability?. Explain your answer and provide some reference links.

1. Marta y Julia ______ un libro anoche.. A. leyeron . B. leyo . C. leimos . D. van a leer . . 2. Adonde_______ tu ayer?. A. fuisteis . B. fueron. C. fuiste . D

What does the suffix ive- mean in the word attractive? a. being like, b. the act of, c. tending to d. the place of

which of the following names the value of the 5s in the number 1,5547

Ethylene glycol (antifreeze) has a density of 1.11 g/cm^3.. . 1/What is the mass in grams of 385mL of this liquid?. . 2/What is the volume in liters of 3.43 k