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Sidana [21]
4 years ago
15

Tom took a trip of 1,300 miles. He traveled by train at 50 miles an hour and the same number of hours by plane at 275 mph. How m

any hours did the trip take? 3 hours 4 hours 8 hours
Mathematics
1 answer:
kvv77 [185]4 years ago
5 0
It would be 4 hours because that's the closet you can get with the answer
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Which of the following representations are functions?
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Step-by-step explanation:

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Find an ordered pair x-2y=4​
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Answer:

Step by Step:
x-2y=4
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x-2y=4
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x=-2y+4
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A rectangular piece of metal is 25 in longer than it is wide. Squares with sides 5 in long are cut from the four corners and the
Licemer1 [7]

Answer:

The original length was 41 inches and the original width was 16 inches

Step-by-step explanation:

Let

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y ----> the original width of the piece of​ metal

we know that

When squares with sides 5 in long are cut from the four corners and the flaps are folded upward to form an open box

The dimensions of the box are

L=(x-10)\ in\\W=(y-10)\ in\\H=5\ in

The volume of the box is equal to

V=(x-10)(y-10)5

V=930\ in^3

so

930=(x-10)(y-10)5

simplify

186=(x-10)(y-10) -----> equation A

Remember that

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so

x=y+25 ----> equation B

substitute equation B in equation A

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Solve the quadratic equation by graphing

using a graphing tool

The solution is y=16

see the attached figure

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therefore

The original length was 41 inches and the original width was 16 inches

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