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Tony spent $100 on books to give away as prizes to his students. At the store, he bought 4 more books than planned, spending $5 per book. Which equation can be used to find the number of books he originally wanted to buy. X

Respuesta :

calculista

Answer:

[tex]5x=100[/tex]

[tex]x=20\ books[/tex]

Step-by-step explanation:

I'm going to assume that all books cost the same.

Let

x ------> the number of books he originally wanted to buy

we know that

[tex](x+4)(5)=100+4(5)[/tex]

[tex]5x+20=100+20[/tex]

[tex]5x=100[/tex] -----> equation that can be used to find the number of books he originally wanted to buy

solve for x

[tex]x=100/5[/tex]

[tex]x=20\ books[/tex]

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