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lilavasa [31]
3 years ago
10

Anita and Brad are each riding on the same path. Anita began riding at start of the path and is riding at rate of 18 mile per ho

ur. Brad begin from a sport 10 mile ahead of her and I riding at rate of 13 mile per hour
Mathematics
1 answer:
ser-zykov [4K]3 years ago
8 0

Answer:

They will be at the same position after 2 hours.

Step-by-step explanation:

Here, it should be asked the time it will take for Anita to catch Brad.

Anita began riding at start of the path and is riding at rate of 18 mile per hour.

This means that, after t hours, her position will be given by:

A(t) = 18t

Brad begin from a sport 10 mile ahead of her and I riding at rate of 13 mile per hour

This means that, after t hours, his position will be given by:

B(t) = 10 + 13t

After how much time will they be at the same position?

This is t for which:

A(t) = B(t)

So

18t = 10 + 13t

5t = 10

t = \frac{10}{5}

t = 2

They will be at the same position after 2 hours.

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the dog needs a 1/3 of a cup of dog food each day. the bag holds 5 cups of dog food how many days will it last ?​
sleet_krkn [62]

Answer:

15 days

Step-by-step explanation:

You have 5 cups of food, and you give him 1/3 a day.

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3 years ago
If f(x)f(x) is an exponential function where f(-1)=5f(−1)=5 and f(7)=32f(7)=32, then find the value of f(4)f(4), to the nearest
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Using an exponential function, it is found that the value of the function when x = 4 is of f(4) = 15.95.

<h3>What is an exponential function?</h3>

It is modeled by:

y = ab^x

In which:

  • a is the initial value.
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In this problem, we have that f(-1)=5, hence:

5 = ab^{-1}

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We also have that f(7)=32, hence:

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Since a = 5b:

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b = 1.2612.

a = 5b = 5 x 1.2612 = 6.306.

Hence the function is given by:

y = 6.306(1.2612)^x

Then, when x = 4, we have that:

y = 6.306(1.2612)^4 = 15.95

More can be learned about exponential functions at brainly.com/question/25537936

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3 years ago
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4 is the correct answer.

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3 years ago
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