So it is really easy to solve firstly we can see how much does the first 10 boxes make which makes around 55$ obviously. Secondly 45$ for the next 10 boxes.
So for now we can simply calculate that we have spent around 100$ which means 20 boxes. The remaining money left is 77$ so we can buy 77/3.5 = 22 only 22 boxes with that money. Hence a total of 42 boxes.
3
1
390
x 42
-------
1282
1564
----------------
the answer would be 16380
Hope this helped :)
You would need exactly 9 correct questions to get a 50%.
We can find this by multiplying the total number of questions by the percentage we are looking for.
18*50% = 9
Answer:
30
Step-by-step explanation:
1 inch / 12 miles = 2.5 inch / x Cross multiply
1*x = 12 * 2.5 Combine
x = 30 miles