03-04-2017
Mathematics

contestada

2x+5y=60
2x-5y=-20

Please show work!

Respuesta :

Goalinetsky Goalinetsky

03-04-2017

(2x+5y=60)
- (2x-5y=-20)
-------------------
10y=80
y=8

2x+5(8)=60
2x+40=60
2x=20
x=10

Answer Link

Otras preguntas

If a bag of pretzels says it contains 10 servings, and each serving is 150 calories, how many calories would you consume if you ate the entire bag? 300, adding

Solve 2x2 + 3x = 20. A. x = −10 and x = 3 B. x = five over two and x= −4 C. x = 5 and x = 2 D. x = negative five over two and x = −4

What is the density of butane (C4H10) at STP? Help please

Help ASAP) Martin gets out of work at 3:00 pm. True or false. Look at the picture and read the statement. Will Mark Brainliest.

Select all of the correct solutions for the following equation 2x - 2 = 4x - y-1 (1,3) (3,1) (-1,-3) C OO d None of the above please help

Why is cyberbullying so devastating to many people beyond just the victim?

Enter the number that makes the equation true. 17 0.54 + 100 100 = 100 + 100

please help! One easy khan question! <33

What were the immediate effects of the American revolution and how did these ideals influence global revolutions.

please help(if you don’t know answer don’t answer.[i’ll report]) will give brainliest too.:)