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2 years ago

6

Sound travels through the air different materials at different speeds. The graph shows that one second, sound travels 5971 meter

s through a stone. However, it travels only 346 air in one second. Air, 20 seconds.

1 answer:

Korolek [52]2 years ago

3 0

Im not quite sure that i understand what youre asking,will you please specify so that i may answer

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$-15=-4m+5\ \ \ |both\ sides\ /+4m\\\\4m-15=5\ \ \ \ |both\ sides\ /+15\\\\4m=20\ \ \ \ |both\ sides\ /:4\\\\\underline{\underline{m=5}}$

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