Let the numbers be x and y.
by the first statement of the question, we get , x + y = 30.,,..(1)
by the second satement, we get , x = y+ y => x=2y... (2)
from equation (2), let us put the value of x in equation (1),
x + y = 30
=> 2y + y = 30
=> 3y = 30
=> y =30/3
=> y = 10
and x=2y => x = 2*10 = 20
in short, the numbers are 10 and 20
I don’t quite understand your question
Answer:
x = 2
Step-by-step explanation:
A, c, and d all have more than 2 significant figures.
a) 47.4 has 3 sig fig
c) 4.67 and 14.3 both have 3 sig fig
d) .201 and 3.52 both have 3 sig fig
