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 th…

Question

asked Jun 18, 2020 181k views

1 Answer

Ambrish Dhaka · Answer 1 · 2020-06-23T12:10:00+0000

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 expression
d-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:

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