Let us first write down the given equation.
80 = 3y + 2y + 4 + 1
80 = 5y + 5
80 - 5 = 5y
75 = 5y
Just reversing both sides we get
5y = 75
Now dividing both sides by 5 we get
y = 15
So the value of y is 15.
I hope the procedure for solving the problem is clear to
you. In future you can solve such problems with ease following the procedure
described.
X = 7
5 + x can also be written as 5 + 7
5 + 7 = 12
Answer: 60 miles
Step-by-step explanation:
Given
It takes ferry 2 hours to travel to town A and only
to travel back to town B.
Speed of current is ![u=5\ mph](https://tex.z-dn.net/?f=u%3D5%5C%20mph)
Suppose the speed of the ferry is
mph
Distance traveled in both the cases is same, but it took more time traveling to city A that is, ferry is moving upstream and downstream for returning time.
![\Rightarrow 2(v-5)=1.5(v+5)\\\Rightarrow 2v-10=1.5v+7.5\\\Rightarrow 0.5v=17.5\\\Rightarrow v=35\ mph](https://tex.z-dn.net/?f=%5CRightarrow%202%28v-5%29%3D1.5%28v%2B5%29%5C%5C%5CRightarrow%202v-10%3D1.5v%2B7.5%5C%5C%5CRightarrow%200.5v%3D17.5%5C%5C%5CRightarrow%20v%3D35%5C%20mph)
Distance between the towns is ![2\times (35-5)=60\ \text{miles}](https://tex.z-dn.net/?f=2%5Ctimes%20%2835-5%29%3D60%5C%20%5Ctext%7Bmiles%7D)
Answer:
what full work.Everyone wants to know so we can help you.
Step-by-step explanation: