whatsup8
whatsup8
08-07-2017
Mathematics
contestada
need help. this is hard.
Respuesta :
konrad509
konrad509
08-07-2017
[tex]\dfrac{x}{y}=\dfrac{13}{5}\\ x+y=90\\\\ 5x=13y\\ x=90-y\\\\ 5(90-y)=13y\\ 450-5y=13y\\ 18y=450\\ y=25\\\\ x=90-25\\ x=65[/tex]
It's 65 and 25.
Answer Link
VER TODAS LAS RESPUESTAS ( 57+ )
Otras preguntas
"Find the point of intersection for each system of linear equations. Which method did you use & why?"
Why was white America so fascinated by Harlem in the 1920s
What is the median cost of 26$, 35$, and 50$
A high-speed computer printer prints a page in 1/6 second. Using this printer, how long would it take to print 30 pages?
What is the median cost of 26$, 35$, and 50$
The Nile river flows into the Mediterranean Sea, what is the volume of the Nile River?:)
Bill made 5 gallons of fruit punch. If 1/4 of punch was cranberry juice, how much cranberry juice did he use?
Why was white America so fascinated by Harlem in the 1920s
660 ft/min=_________ft/s 1 min = 60 sec
"Find the point of intersection for each system of linear equations. Which method did you use & why?"
