applebloom152 applebloom152

22-02-2017
Mathematics

contestada

how do you do elimination on 5x+y=9 and 10x-7y=-18

Respuesta :

michelleirias michelleirias

22-02-2017

(5x+y=9)-10
(10x-7y=-18)5

-50x-10y=-90
50x-35y=-90

-45y=-180
-180/-45=4
y=4

5x+(4)=9
5x+4=9
-4 -4
5x=5
x=1
(1,4)

Answer Link

Otras preguntas

tell statement are true or false or uncertain with justification in 20 mins i will thumb up 13. In a closed economy where wages and prices are fully flexible an

Find f'(2), where f(t)=u(t)• v(t), u(2)= (1, 2, -1), u'(2)=(3, 0, 4) and v(t)= (t,t^2,t^3).

A credit card company is analyzing the size of contested charges by its customers. Fifty contested items are randomly selected and have a sample mean of $95.74.

Write an essay discussing your impression of the supreme court processing of Canada. Comment on the appropriateness of the proceedings, the role of the judge, t

Essay with 5 paragraphs about how the earths layers help the earth fuction and why is it beneficial

I WILL GIVE 5 STARS, BRAINLIEST AND A HEART TO WHOEVER HELPS ME IM BEGGING YOU PLEASE (Please answer all the questions)

Which of the following factors favor the issuance of equity in the financing decision? I. Market signaling II. Distress costs III. Management incentives IV. Fin

The function g(t) = -16t^2+140t describes the height of a model rocket over time. a. Use technology to sketch the graph the function and label the axes. b. Wha

Explain two types of cybercrime and how each would impact both individuals and a business. 200-300 words typed

how long does it take a radio signal from earth to reach the moon, which has an orbital radius of approximately 3.8410 m? (express your answer to three signific