2 years ago

Which two days had a ratio of 2:5 computers sold?

Mathematics

2 answers:

tatyana61 [14]2 years ago

8 0

Answer:

Step-by-step explanation:

Wednesday : Friday

6 : 15

6/3 : 15/3

2 : 5

Nana76 [90]2 years ago

7 0

Answer:

A. Wednesday to Friday

Step-by-step explanation:

Wednesday/Friday=6/15=2/5

2/5=2:5

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2 years ago

Karen claps her hand and hears the echo from a distant wall 0.113 s later. How far away is the wall? The speed of sound in air i

insens350 [35]

Answer:

19.3795 m

Step-by-step explanation:

If sound travels at 343 m/s and it took Karen 0.113 s to hear the echo from the wall, the distance travelled by the sound is:

$D=343\frac{m}{s} *0.113\ s\\D= 38.759\ m$

Note that the distance calculated above is the distance travelled from Karen to the wall and then back from the wall to Karen. Therefore, the distance between Karen and the wall is:

$d=\frac{38.759}{2}\\d=19.3795\ m$