Answer:
x : y = 5 : 2
Step-by-step explanation:
Given
= ( cross- multiply )
5x + 4y = 3(x + 3y)
5x + 4y = 3x + 9y ( subtract 3x from both sides )
2x + 4y = 9y ( subtract 4y from both sides )
2x = 5y ( divide both sides by 2 )
x = y ( divide both sides by y )
= , that is
x/y = 5/2
hello :
(x+3y) /( 5x+4y)= 1/3 means : 5x+4y = 3(x+3y)
5x+4y = 3x+9y
5x-3x = 9y - 4y
2x = 5y
now divid by y : 2x/y = 5y/y
2x/y = 5 so : x/y = 5/2
30 students are in the science class and 3 students recieved a failing grade.
2 1/3 longer
yw ;)
Answer: yes
Step-by-step explanation: it is