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

What is the surface area of the prism? A. 144 in2 B. 420 in2 C. 288 in2 D. 140 in2 I really don't know where to post a link to the prism pic

Kevin will take 4 math tests this term. All of the tests are worth the same number of points. After taking the first 3 tests, his mean test score is 88 points.

How do I do trebuchet calculations????? Help me please

amy wants to carpet a room that is 12 feet by 8 feet. how many square yards of carpet will she need to complete the room?

2ln(5x)=8 solve for x

EASY SCALE FACTOR SHOW WORK

Please help solve, thanks in advance!

A tabletop in the shape of a trapezoid has an area of 6,550 square centimeters. Its longer base measures 115 centimeters and the shorter base is 85 centimeters.

HELPPPPP 35% OF GRADEEEEE.... When John bought his new computer, he purchased an online computer help service. The help service has a yearly fee of $25.50 and a

When 40 is added to the number of miles Karen ran last week, the result is the same as adding 10 to 4 times the number of miles she ran last week. How many mile