Raul has $460 in his checking account. each month, $45 is automatically deducted from his account to pay for his cell phone plan. he makes no other deposits or withdrawals. he wants to always have more than $100 in his account. what is the greatest number of months he can pay for his cell phone and still have more than $100 in his account?

The answer is 7 months.

Step-by-step explanation:

Raul has $460 in his checking account. Each month, $45 is automatically deducted from his account to pay for his cell phone plan.

He wants to always have more than $100 in his account.

Let the greatest number of months he can pay for his cell phone and still have more than $100 in his account be = x

So, equation representing this situation becomes:

Solving this we get

=>

=>

So, the answer is 7 months.

If we take months, then exactly $100 will be left but the condition says, more than $100 is needed, so we will take 7 months.

Therefore, the answer is 7 months.

c is the correct answer

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this