victoria38baby victoria38baby

03-06-2018
Mathematics

contestada

the difference of a number and twice another number is 12. The sum of the two numbers is -27. What are the two numbers?

Respuesta :

altavistard altavistard

13-06-2018

Let the numbers be x and x. Then x-2y=12. Also, x+y= -27, so that x = -27 - y.

Subbing the 2nd equation into the first gives us -27 - y - 2y = 12, or

-39=3y, or y = -13 (answer). Now find x from x = -27 - y.

Answer Link

Otras preguntas

What helped resolve the issue of sanitation in overcrowded cities in Rome?

Does extroversion lead to greater success than introversion?

What did the ancient Egyptians do to limit damage from flooding? They created water wheels. They stored water in reservoirs. They constructed cataracts to drain

Rita purchased a two pounds of oranges. Each pound of oranges was $2.47. How much money did Rita spend in all? Do not include $ in your answer.

3 and 4 are the same question

1. What was Agent Orange? 2. Why was it used? 3. What effects did it have? Vietnam war

Why did the confederates burn down richmond as president davis and his cabnet fled?

What did each of the big four want out of the treaty of versailles

Explain the difference between cytokinesis in plant cells and cytokinesis in animal cells.

Drag each label to the correct location. The circles in the model represent atmospheric layers. Match each description with the correct name of each layer. trop