Which equation represent a horizontal lines? A. x= y + 2 B. y= 2 C. y= x + 1 D. x=2

I travelled at 60km/h and took 2 hours for a certain journey. How long would it have taken me if I had travelled at 50km/h?

Marina86 [1]

Answer:

2 hours and 24 minutes

Step-by-step explanation:

2 hours at 60 km/h means you have travelled 2*60=120 km

120 km at 50 km/h takes 120/50 = 2.4 hours

2.4 hours is 2 hours and 0.4*60 = 24 minutes.

7 0

4 years ago

Math questions please help

romanna [79]

18. 18x1024
19. a or c

5 0

3 years ago

(c) Given that the average speed for the entire journey was 80 km/h, form an equation in x and solve the equation.

Oduvanchick [21]

Answer:

80x = y

Step-by-step explanation:

4 0

2 years ago

B. A square has a side length of 5 feet. What is the length of each side of the square

densk [106]

Answer:

5 ft.

Step-by-step explanation:

A square is a shape comprised of all equal side lengths. Therefore, if we are given that the square has a side length of 5 feet, then every side's length would also be 5 feet.

7 0

3 years ago

The height that a properly inflated basketball bounces decreases exponentially by 27.8% with each subsequent bounce after the in

n200080 [17]

Answer:

$H (b) = 0.722^b(6)$

Step-by-step explanation:

The first time the basketball bounces it reaches a height of $(1-0.278)(6) = (0.722) (6)$ .

The second time the basketball bounces it reaches a height of $(0.722) (0.722) (6) = [(0.722) ^ 2] (6)$ . Therefore, after b rebounds the height that the basketball will reach is given by:

$H (b) = 0.722^b(6)$

3 0

4 years ago

Which equation represent a horizontal lines? A. x= y + 2B. y= 2C. y= x + 1D. x=2