Ben starts walking along a path at 4mi/h. one and a half hours after ben leaves, his sister amanda begins jogging along the same path at 7mi/h. how long will it be before amanda catches up to ben?

2 Hours.

Step-by-step explanation:

Ben walks 1 1/2 hours at 4 mi/h so he travels 6 miles.

Let x be the number of miles Amanda jogs  so in the same time Ben has walked

x - 6 miles when Amanda catches up.

Distance = speed * time So

x = 7t  (amanda)

x - 6 = 4t   (Ben)

x = 4t + 6

x = 7t     Therefore, as they are both equal to x:

7t = 4t  + 6

3t = 6

t = 2 hours.

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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