Those who said $10 are wrong. The answer is in fact $5.
Let's represent the Jewelry Box by the letter A, and the Ring by the letter B, we can make two simultaneous equations based on the price (worth) of the items:
A + B = $200
A = B + $190
If we substitute the second equation into the first, we get:
B + $190 + B = $200
2B + $190 = $200
2B = $10
B = $5
So the ring is worth $5.
If we substitute this result back into the original equation, we can work out the price of the Jewelry Box:
A + B = $200
A + $5 = $200
A = $195
So the Jewelry Box is worth $195, which is $190 more than the Ring.
Let's represent the Jewelry Box by the letter A, and the Ring by the letter B, we can make two simultaneous equations based on the price (worth) of the items:
A + B = $200
A = B + $190
If we substitute the second equation into the first, we get:
B + $190 + B = $200
2B + $190 = $200
2B = $10
B = $5
So the ring is worth $5.
If we substitute this result back into the original equation, we can work out the price of the Jewelry Box:
A + B = $200
A + $5 = $200
A = $195
So the Jewelry Box is worth $195, which is $190 more than the Ring.
