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In which situation do the quantities combine to make 0?

A. Emily ran 3 miles on saturday and walked 3 Miles on sunday.

B. Beverly bought a chair for 350$ and sold it 3 years later for $350.

C. Josh ran 2 laps counterclockwise around a track and then 2 laps clockwise around the track.

D. Trey deposited $150 into his savings account on friday and withdrew $100 the following week.

1 Answer

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Answer: B. Beverly bought a chair for 350$ and sold it 3 years later for $350.

Explanation:

If we want to have an end result of zero, we must have two opposite numbers. Let's analyze each of the given options:

A: Emily ran 3 miles on Saturday and walked 3 Miles on Sunday.

Then the total distance traveled is 3mi + 3mi = 6mi.

B: Beverly bought a chair for 350$ and sold it 3 years later for $350.

When she bought the chair, she lost $350, this is represented with:

-$350

And then she recovered the $350, if we add these we get:

-$350 + $350 = $0

The end result is 0, as we wanted.

C: Josh ran 2 laps counterclockwise around a track and then 2 laps clockwise around the track.

Again, the total distance traveled will be 2 laps + 2 laps = 4 laps, the direction does not really matter.

D: Trey deposited $150 into his savings account on friday and withdrew $100 the following week.

The deposit is represented with $150

The withdrew is represented with -$100

Adding those we get:

$150 + (-$100) = $50

This is not zero.

Then the only correct option is B

User Ilia Draznin
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