MinnieTewksbury497 MinnieTewksbury497

04-06-2015
Mathematics

contestada

3x + y = 19 , and x + 3y = 1. Find the value of 2x + 2y
a. 20
b. 18
c. 11
d. 10
e. 5

Respuesta :

04-06-2015

[tex]3x+y=19 \\ x+3y=1 \\ \\ \hbox{add the sides of the equations:} \\ 3x+x+y+3y=19+1 \\ 4x+4y=20 \\ \\ \hbox{divide both sides by 2:} \\ 2x+2y=10[/tex]

The answer is d. 10.

Answer Link

Otras preguntas

Which condition is characterized by the destruction of the walls of the alveoli?

Intrinsically, he was supposed to ostracize me. Technically, I was expected to shun him. Nonetheless, neither of us followed through. Does this sound natural?

Dillon wants to adapt his sales message to his target audience. what question is his audience likely to ask while reading his message ?

In step 6, khp was dissolved in a trivial amount of deionized h2o prior to titration with naoh. why was it acceptable to use an approximate volume of h2o when t

After we found the classroom, we sneaked in the back an took our seats what is the subordinate idea in the sentance

What does delved mean

Identify the sentence that best reflects the "you" attitude. a. i need your completed questionnaire by december 1 so i can prepare my report. b. we have extende

⭐️Anyone know how to do this?

A person can work full-time at a minimum wage job and still be considered poor or beneath the poverty line. a. True b. False

What is the answer to 6x+3=5x+10