Berry Boulevard is 4 4/5 Miles long. There are two traffic lights on Berry Boulevard every 2/5 mile after the street begins .There are 2 stop signs every 1 3/5 miles .How many traffic lights are there on Berry Boulevard

There are 24 traffic lights on Berry Boulevard.

Step-by-step explanation:

Since we have given that

Total length of road =

Number of roads on every = 2

So, According to unitary method,

In every , number of roads = 2

In every 1 mile, number of roads =

So, in every  the number of roads =

Hence, there are 24 traffic lights on Berry Boulevard.

something that characterises a right triangle is the fact that we may use pythagoras' theorem to find any one of its sides given that we have the length of the other two sides. here, we have the length of the hypotenuse, √(87) yd, and one other side, √(23) yd, thus we can easily find the length of the remaining side using pythagoras' theorem as defined below:

c^2 = a^2 + b^2, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

thus, given that c = √(87) and a = √(23), we may substitute these into the formula we defined above to get:

c^2 = a^2 + b^2

(√87)^2 = (√23)^2 + b^2 (substitute c = √87 and a = √23 into the equation)

87 = 23 + b^2 (evaluate (√87)^2 = 87 and (√23)^2 = 23 - remember that the square root of a number, squared will equal that very same number)

64 = b^2 (subtract 23 from both sides)

√64 = b (take the square root of both sides)

8 = b (evaluate √64 = 8)

therefor, the length of the unknown leg in the right triangle is 8 yd (first answer).