Vagotonusybk

2022-02-10

Maya has 2x as many white beads as black beads. After using 40 white and 5 black to make a necklace she has 3x as many black beads as white. How many black beads she started with?

Alaina Contreras

Beginner2022-02-11Added 19 answers

Step 1

Suppose Maya has B black beads and so has 2B white beads.

She used 5 black beads and 40 white beads,

so she was left with

Now as she has 3 times as many black beads as white,

or

or

or

Hence, she started with 23 black beads.

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