Answer: 7quarters and 3 nickels
Step-by-step explanation:
7=$1.75 3=.15
I hope this helps you
2.5.9+2.5.7+2.7.9
90+70+126
286
5+1.25t=w five months at start plus 1.25 per month equals the total weight
Answer:
The rate of the current is 2 miles per hour.
Step-by-step explanation:
Let us assume that the rate of the river is v miles per hour.
The speed of the boat is 12 miles per hour.
Let us assume also that the boat can go 21 miles in t hours in the downstream and 15 miles upstream at the same time i.e. t hours.
So, from the condition given we can write that
......... (1), and
......... (2)
Now, adding those two equations we get
⇒
hours
Now, from equation (1), we get,
⇒ v = 2 miles per hour
Therefore, the rate of the current is 2 miles per hour. (Answer)