Answer:
The average speed is 24 km/h less than the top speed of the lorry.
Step-by-step explanation:
The top speed of the lorry is the highest speed reached during transit, while its average speed is the mean speed attained
Given:.
Top speed of the lorry = 90 km/h
Average speed of the lorry = 66 km/h
Then,
The difference between the speed reached = top speed - average speed
= 90 - 66
= 24 km/h
Therefore, the average speed is 24 km/h less than the top speed of the lorry.
Answer:
total area = 18.28 in.^2
perimeter = 16.28 cm
Step-by-step explanation:
Area:
The total area of the figure is the sim of the area of the rectangle and the area of the semicircle.
total area = LW + (1/2)(pi)r^2
total area = (4 in.)(3 in.) + (1/2)(3.14)(2 in.)^2
total area = 12 in.^2 + 6.28 in.^2
total area = 18.28 in.^2
Perimeter:
The perimeter of the figure is the sum of the lengths of the left side, bottom side, and right side of the rectangle and the circumference of the half circle.
perimeter = 3 cm + 4 cm + 3 cm + (1/2)(pi)d
perimeter = 10 + (1/2)(3.14)(4 cm)
perimeter = 10 + 6.28 cm
perimeter = 16.28 cm
Answer:
112.5 miles.
Step-by-step explanation:
2 cm = 25 miles
The question is asking you for the distance between two cities, and is giving you the information that it's 9 cm on the map.
2 cm + 2 cm + 2 cm + 2 cm = 8 cm
25 divided by 2 is 12.5, which would give you 1 cm for the map key.
2 cm + 2 cm + 2 cm + 2 cm + 1 cm = 9 cm
25 miles + 25 miles + 25 miles + 25 miles + 12.5 miles = 112.5
Let
x-------------> length of the fence
y-------------> width of the fence
we know that
Area of rectangle=x*y
perimeter of rectangle=2x+2y
A=250 ft²
P=68 ft
then
250=x*y-----------> x=250/y equation 1
68=2x+2y-----------> equation 2
using a graph tool---------> to resolve the system of equations
see the attached figure
the solution is the point 1 (10.755,23.245) and the point 2 (23.245,10.755)
for the point 1
x=10.755 ft
y=23.245 ft
for the point 2
x=23.245 ft
y=10.755 ft
the answer is
<span>the dimensions of the fence are
23.245 ft x 10.755 ft
</span>or
10.755 ft x 23.245 ft