Answer:
the average speed of the whole journey is 45 km/h
Step-by-step explanation:
The computation of the average speed of the whole journey is shown below:
Average speed is
= (Speed 1 + speed 2) ÷ 2
= (60 km/h + 30 km/h) ÷ 2
= 90 km/h ÷ 2
= 45 km/h
Hence, the average speed of the whole journey is 45 km/h
We simply ignored the distance as it is not relevant for the given situation
The same would be considered
Answer:
s = 10500
Step-by-step explanation:
s/5 + 125 = 2225
Our mission is to isolate s. We can first begin to do this by subtracting 125 from both sides.
s/5 + 125 - 125 = 2225 - 125
s/5 = 2100
Since s is being divided by 5, we can multiply by 5 on both sides to get s alone.
s/5 x 5 = 2100 x 5
s = 10500
Answer:
174 ft²
Step-by-step explanation:
The polygon cam be decomposed into two rectangles.
The area of the polygon = rectangle A + rectangle B
Area of rectangle A = L* W
L = 18 ft
W = 9 ft
Area of rectangle A = 18*9 = 162 ft²
Area of rectangle B = L* W
L = 20 - 18 = 2 ft
W = 6 ft
Area of rectangle A = 2*6 = 12 ft²
✔️Area of the polygon = 162 + 12 = 174 ft²
R=square root of 10 is the answer
Answer:
Substitute x = 6 into the equation 3x-18
