Leila has $420 in her bank account. Every month, she deposits another $40 into her account. At this rate, in how many more month
1 answer:
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Answer:
Step-by-step explanation:
Given
From the rows, the equation is:
--- (1)
--- (2)
--- (3)
Make A the subject in:
Substitute in
Make B the subject
Substitute in
Collect like terms
Divide by 9
Recall that:
Recall that:
Hence: