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Amanda and Alexis live 4 miles apart. They decide to start walking toward each other's houses at the same time. Amanda walks at a rate of 3.5 miles per hour and Alexis walks at a rate of 4 miles per hour. How long will it take for them to meet? Round to the nearest hundredth of an hour. [Remember: D = (r)(t)] Two boxes, one with Amanda and 3.5 m p h. To the right is the other box with Alexis and 4 m p h. Below, the boxes there is a bracket, halfway between, pointing to 4 miles. hour

Sagot :

Answer:

t = 0.534 seconds

Step-by-step explanation:

Given that,

Amanda and Alexis live 4 miles apart.

Speed of Amanda = 3.5 mph

Speed of Alex = 4 mph

We need to find how long will it take for them to meet.

As they start walking toward each other's houses at the same rate. Their relative velocity will be :

v = 3.5 mph + 4 mph

= 7.5 mph

Let after time t they will meet.

[tex]t=\dfrac{d}{v}\\\\t=\dfrac{4}{7.5}\\\\=0.534\ s[/tex]

Hence, after 0.534 seconds they will meet.

landerson06

Answer:

the person above me is right but the answer is 0.53 on edge 2020

Step-by-step explanation:

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