SOLUTION: What would be the equation, standard form, and slope intercept for this question. "Liza made a necklace with two different sizes of beads.the total length of the necklace is 20 inc

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Question 1031756: What would be the equation, standard form, and slope intercept for this question. "Liza made a necklace with two different sizes of beads.the total length of the necklace is 20 inches. Each red bead is 1 inch long and each black bead is .5 inch long. Write an equation to represent the number of red beads, r, Liza will need for the necklace"?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +r+ = number of red beads
Let +b+ = number of black beads
+1%2Ar+%2B+.5%2Ab+=+20+ ( standard form )
+r+=+-.5b+%2B+20+ ( slope intercept form )
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Here's the plot of +r+=+f%28b%29+
+graph%28+400%2C+400%2C+-4%2C+45%2C+-3%2C+25%2C+-.5x+%2B+20+%29+