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babymother [125]
3 years ago
15

Nick opens a savings account with $50. Each week after, he deposits $15. He wants to save $500. Write and solve equation to find

the number of weeks it will take him to save $500.
Mathematics
1 answer:
Alborosie3 years ago
6 0

Answer:

Equation: 500 = 50 + 15x

Step-by-step explanation:

where x is the number of weeks Nick will have to deposit $15 in order to accumulate $500, given that the first week he deposited $50.  

500 = 50 + 15x

500 = 50 + 15x

450 = 15x

x = 30

 

Now Nick will have to deposit $15 each week for 30 weeks.   This is in addition to the $50 deposit he made week 1.  So it will take him 31 total deposits to accumulate the $500.

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s = 4r - 1

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Now that we know that value for the variable r, we can substitute this value into one of our original equations (either one will work, but I am choosing to use the first one):

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Hope this helps!

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