Josuesantiago84 Josuesantiago84
  • 01-06-2018
  • Mathematics
contestada

Solve the system of equations 2r + 2s = 50 and 2r – s = 17. A. r = 3, s = 11 B. r = 25, s = 33 C. r = 14, s = 11 D. r = –8, s = 33

Respuesta :

alarisaT
alarisaT alarisaT
  • 01-06-2018

[tex]2r = 17 + s = 50 - 2s \\ 3s = 50 - 17 = 33 \\ s = 11 \\ \\2 r = 50 - 2s \\ 2r = 50 - 2 \times 11 = 50 - 22 = 28 \\ r = 14[/tex]




C. r=14, s =11
Answer Link

Otras preguntas

tan(x+[tex]\frac{\pi }{4}[/tex]) =1
Can y'all help me with my math problem please
The diagram shows a trapezium Work out the value of y . Give your answer correct to 1 decimal place.
Type the digit that makes this statement true 70,228,30_ is divisible by 2
A ball is dropped from a height of 1m. If the coefficient of restitution between the ball and the surface is 0.6, what is the height the ball rebounds to?​
The ratio of men working for a company is 4 to 3. If there are 147 employees total, how many women work the company?
Which of the following is not a potential drawback of movies with current hot- button topics? * They may only appeal to certain demographics or political views.
Which diagram illustrates a cause-and-effect relationship on the home front during World War II?
Sam buys 3 pounds of apples for $6. What is the unit rate?
find a formula for the graph of the function f(x) given the figure above