contestada

Hi!
Got a question!
Sound travels 7200 km/hhr. What's the speed in m/s?
A.2000 m/s
B.20 m/s
C.200m/s
Thanks!!
And please explain!​

Respuesta :

BenjaminPhilip

Answer:

A [tex]=[/tex] 2000 m/s

Step-by-step explanation:

When you multiply a km/h with [tex]\frac{5}{18}[/tex] , it converts to m/s.

So,

[tex]7200[/tex] × [tex]\frac{5}{18}[/tex] [tex]= 2000[/tex] m/s

Hope this helps...

Please mark as Brainliest!!

merue

Answer:

A

Step-by-step explanation:

Units of Lenght :

  • Km
  • Hm
  • Dam
  • m
  • dm
  • cm
  • mm
  1.   ÷10 for each step ↑
  2.   x10 for each step ↓

7200 km = 7200.1000 m

1 h = 60 minutes

every minute has 60 s.

1 h = 60 x 60 s

[tex]\frac{7200}{1}[/tex] km/h = [tex]\frac{7200.1000}{60.60}[/tex] m/s

[tex]\frac{7200.1000}{60.60} = \frac{2.1000}{1}[/tex]

2.1000 = 2000

Hope this helps ^-^

Otras preguntas