Luis owes the school cafeteria $10, which means that he has a –$10 balance on his lunch account.
Which situation illustrates the idea of a number and its opposite?
Responses
A Luis' mom deposits $50 in Luis' lunch account, so Luis has a $40 balance on his lunch account.Luis' mom deposits $50 in Luis' lunch account, so Luis has a $40 balance on his lunch account.
B Luis spends $4 more dollars on lunch without depositing money into his lunch account. Luis spends $4 more dollars on lunch without depositing money into his lunch account.
C Luis' mom deposits $10 in Luis' lunch account, so Luis has a $0 balance on his lunch account.Luis' mom deposits $10 in Luis' lunch account, so Luis has a $0 balance on his lunch account.
D Luis skips lunch because he does not want to go further into debt.
C Luis' mom deposits $10 in Luis' lunch account, so Luis has a $0 balance on his lunch account.
This situation illustrates the idea of a number and its opposite because Luis had a negative balance of –$10, and his mom's deposit of $10 brought his balance back to zero.