At first situation, ratio = x/y = 1/5
5x = y -------Equation (i)
Now, after adding 5 more red, it is = x + 5 / y+5 = 1/3
y+5 = 3(x + 5)
y + 5 = 3x + 15
y - 3x = 15 - 5
Substitute the value of y from equation (1),
5x - 3x = 15 - 5
2x = 10
x = 10/2
x = 5
Originally, There were 5 red marbles in the bag
Hope this helps!
Answer:
the answer would be -2-3i
Explanation:
The answer would be 6 even numbers greater than 2 and less than 20 would be equal to the sum of two prime numbers.
explanation:
even numbers greater than 2 and less than 20 would be 4, 6, 8, 10, 12, 14, 16, and 18.
the prime numbers we can use would be 2, 3, 5, 7, 11, and 13.
13+3=16 and 13+5=18.
11+3=14.
7+3=10 and 7+5=12.
finally, 5+3=8.
that makes a total of 6 even numbers.