Answer:
13
Step-by-step explanation:
16 - 3
4 is your answer
3 x 4 = 12
15 x 4 = 60
so 4 is the amount
hope this helps
21. if Sam's erasers are represented by x, then sari, who has three times more, would be represented by 3x. since you are adding two together to get 28, the equation would be 28=3x+x. Simplify to 28=4x, divide by 4 to isolate x, where x=7. multiply this by 3 to get sari's amount.
One million = 1,000,000
So Three million is 3,000,000
One thousandths is 0.001
So nine thousandths is 0.009
So three million and nine thousandths is 3,000,000.009
7+9=x+1
X=15. I think this is what you are asking not sure tho
