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Alex Ar [27]
3 years ago
5

Suppose you had d dollars in your bank account. You spent $12 but have at least $51 left. How much money did you have initially?

Write and solve an inequality that represents this situation.
Mathematics
1 answer:
PtichkaEL [24]3 years ago
8 0

For this case we must raise an inequality.

We have "d" dollars initially and they are spent 12. Then:

d-12

At least 51 dollars remain, then, the sign of inequality is greater or equal in favor of the expressiond-12, that is:

d-12\geq 51

Resolving:

d\geq 51 + 12\\d\geq 63

There are at least 63 dollars left in the account.

Answer:

d-12\geq 51\\d\geq 63

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