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you are making curtains by alternating strips of solid colored fabric and patterned fabric. the solid colored fabric costs 99¢ per strip and the patterned fabric costs $1.25 per strip. you need 7 strips for one curtain. Write an equation that gives the total cost c as a function of the number n of solid colored strips used. then find the total cost if you use 3 solid colored strips.



Answer :

Illuminati750
Hello, 

to find the total cost (c) of the colored strips we have to multiply the number of strips (n) by the cost of each color strip (99¢), that as an algebraic function is:

[tex]\boxed{c= n*99}[/tex] [¢]

Now, if we use 3 solid color strips, that means that we use 4 patterned strips, so:

[tex]Cost=3*0.99+4*1.25 \\ \boxed{Cost= 7.97}[/tex]

Answer: c=n*99   and   Cost per curtain= $7.97

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