2 years ago

Algebra work need help please show working

Mathematics

1 answer:

Nastasia [14]2 years ago

8 0

Expand the left side:

(3x + 2) (5x + 1) = 15x² + 10x + 3x + 2 = 15x² + 13x + 2

Then a = 15 and b = 13, so a - b = 2.

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Let Mary Sue have m necklaces and Betty have b necklaces.

And they have 603 necklaces altogether, that is

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And Mary Sue has 115 more necklaces than Betty, that is

m=b +115

Substituting this value in first equation we will get

b+115+b=603

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DerKrebs [107]

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photoshop1234 [79]

it is the second one

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