Answered

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Bert is making a bracelet with green and blue beads. He uses green beads for the first 6
centimeters. Now, he wants to add blue beads to the bracelet so the total length is 20
centimeters. If each blue bead has a width of 7 millimeters, how many blue beads will he use
to finish the bracelet?

Sagot :

Well first you need to know how many millimeters are in a centimeter which is 10. Knowing that we already used 6 you will subtract 20-6=14 now you find how many total millimeters it is by multiplying 14 by 10 which is 140 millimeters. Divide that number by 7 since each bead is 7 millimeters and you get 20. The number of blue beads he will use is 20 to finish the bracelet.
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