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at the rate shown in the table how many books were sold in 3 weeks

At The Rate Shown In The Table How Many Books Were Sold In 3 Weeks class=

Sagot :

210 books were sold in 3 weeks

Explanation

Step 1

you can easily solve this by using a rule of three

number of weeks=1

sold books=70

then, the rate is

[tex]\text{rate}=\frac{70\text{ books}}{1\text{ we}ek}=70\text{ book}s\text{ per w}eek[/tex]

Step 2

Let

x represents the number of books sold in 3 weeks,then the rate is

[tex]\text{rate}=\frac{x}{3\text{ w}eeks}[/tex]

as the rates are equal

[tex]\begin{gathered} 70=\frac{x}{3} \\ Multiply\text{ both sides by 3} \\ 70\cdot3=\frac{x}{3}\cdot3 \\ x=210 \end{gathered}[/tex]

I hope this helps you

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