Answer:
3:4
Step-by-step explanation:
(1/7)/(4/21) = (1/7)×(21/4) = 3/4 = 3:4
Answer:
R' (3,-3)
Step-by-step explanation:
Answer: there are 2 student art and 19 student study Biology
Step-by-step explanation:
Because 4 is already study neither subject.
When we eliminate y,(by adding here), resulting equation would be:
2x - 14 =0
So, x = 7
You can find the value of y as well, by substituting the value of x,
7 - y -8 = 0
y = -1
Hope this helps!
