Question

Kari is comparing two numbers A and B, shown below.

Answer 1

Answer:  B = 10A + 8

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Explanation:

This is something you would do through trial and error to check each answer choice

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We can cross off A = 10B since

A = 10B = 10*(6,007,058) = 60,070,580

but that's not what A is actually equal to (it should be 600,705)

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We can also cross off A = 100B + 58 because,

A = 100B + 58

A = 100*(6,007,058) + 58

A = 600,705,800 + 58

A = 600,705,858

But that doesn't match with A = 600,705 either

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Now let's try the third equation

B = 10A + 8

B = 10(600,705) + 8

B = 6,007,050 + 8

B = 6,007,058

That matches with what your teacher gave you. So this confirms we have the correct equation.

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I'll let you check the remaining two. You should find that they don't work out.