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fgiga [73]
3 years ago
13

The aquarium is 2 1/2 miles from her hotel. She walks 1/4 to the bus stop. Takes the bus for 1 3/4 miles and walks the rest of t

he way. How far did she walk?
Mathematics
2 answers:
OleMash [197]3 years ago
7 0

Answer:

2/4

Step-by-step explanation:

Change the 2 1/2 to 2 2/4

now subtract 1/4 from 2 2/4 leaving 2 1/4

Now subtract 1 3/4 from 2 1/4 in which you get 2/4

which is the answer :)

defon3 years ago
6 0
She walked one half of a mile
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Which expression is equivalent sqrt10/4sqrt8
N76 [4]

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The correct option is A

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3 0
4 years ago
a train travels 288km at a uniform speed.if the speed has been 4km per hour more it would have taken one hour less for the same
Lostsunrise [7]

Given:

A train travels 288 km at a uniform speed.

If the speed has been 4 km per hour more it would have taken one hour less for the same journey.

To find:

The initial speed of the train.

Solution:

Let x km/h be the initial speed on the train.

New speed of train = (x+4) km/h

We know that,

Time=\dfrac{Distance}{Speed}

Time taken by the train initially to cover 288 km is \dfrac{288}{x} hours.

New time taken by the train to cover 288 km is \dfrac{288}{x+4} hours.

It is given that If the speed has been 4 km per hour more it would have taken one hour less for the same journey.

\dfrac{288}{x}-\dfrac{288}{x+4}=1

\dfrac{288(x+4)-288x}{x(x+4)}=1

288x+1152-288x=x^2+4x

1152=x^2+4x

0=x^2+4x-1152

Splitting the middle term, we get

x^2+36x-32x-1152=0

x(x+36)-32(x+36)=0

(x+36)(x-32)=0

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We know that the speed cannot be negative. So, the only possible value of x is 32.

Therefore, the speed of the train is 32 km/h.

3 0
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