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vova2212 [387]
3 years ago
13

Patty is making a poster for science class. She spends. 50 minutes on each. Of 2 days. She completes 1/3 of the poster the first

day and another 1/3 the next day what fraction of the poster has she completed so far?
Mathematics
1 answer:
Viktor [21]3 years ago
7 0

Answer:

She has completed 2/3 of the poster

Explanation:

1/3 of the poster the first day

+

1/3 of the poster the next day

1/3 + 1/3 = 2/3

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What is one of the solutions to the following system of equations?
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Answer:

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Step-by-step explanation:

Given :   x^{2} +y^{2} =65

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To Find: solution of given system of equations.

Solution:

Equation a :   x^{2} +y^{2} =65

Equation b :  x+y=7

Substitute the value of y from equation b in equation a

y from equation b : y = 7-x

Now substitute value of y in equation a

Thus equation a becomes:

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x^{2} +49+x^{2}-14x =65

2x^{2} -14x =65-49

x^{2} -7x -8=0

x^{2} -8x+x -8=0

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(x+1)(x-8)=0

⇒ x= -1 and x = 8

Now substitute values of x  in equation b to obtains values of y

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for x = -1

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Thus (x,y)=(-1,8)

For x =8

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Thus (x,y)=(8,-1)

Hence Option A is the correct solution .


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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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