Answer:
Step-by-step explanation:
3x + 5y = 15
divide by 15;
3x/15 + 5y/15 = 15/15
x/5 + y/3 = 1
x-intercept= 5
y-intercept= 3
3/9 is your answer. 3+6=9 and there are 3 red marbles.
To find this you simply have to look at the formula given. n stands for the number of days. 300,000 is the original. So the only number left is 1.008, but you have to make this a percent by moving the decimal to the right 2 places.
Final answer is 100.8%
Need more info about the 3 younger siblings
It is an example of the Distributive property
