Maya has 2x as many white beads as black beads.

Vagotonusybk 2022-02-10 Answered
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?
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Expert Answer

Alaina Contreras
Answered 2022-02-11 Author has 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 (B5) black beads and 2B40 white beads.
Now as she has 3 times as many black beads as white,
B5=3(2B40)
or
B5=6B120
or
1205=6BB
or
5B=115 i.e. B=1155=23
Hence, she started with 23 black beads.

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