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lukranit [14]
3 years ago
13

Richard purchased some books for $9.25 each. He paid a total of $46.25. If b is the number of books, which equation can be used

to determine the total amount of books Richard bought? b + 9.25 = 46.25 46.25b = 9.25 9.25b = 46.25 46.25 - b = 9.25
Mathematics
1 answer:
tamaranim1 [39]3 years ago
7 0

Answer:

9.25b=46.25

Step-by-step explanation:

9.25b=46.25/:9.25

b=5

Richard purchased 5 books for $9.25 each

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This was given to me during a summative test and the teacher didn't bother giving me the correction. I just cannot figure it out
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  • Base be y

ATQ

\\ \sf\longmapsto xy=6050\dots 1

\\ \sf\longmapsto 2(x+y)=220\implies x+y=110\dots 2

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\\ \sf\longmapsto 110^2-2(6050)=x^2+y^2

\\ \sf\longmapsto 12100-12100=x^2+y^2

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\\ \sf\longmapsto (x-y)^2=x^2+y^2-2xy

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One side won't be covered hence

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7 0
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Hope this helps!
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