SOLUTION: Hi guys, I would be grateful if anyone could take the time to help me understand and solve this math problem. I'm overwhelmed with anxiety. For a given interest​ rate, simple

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Question 1137465: Hi guys, I would be grateful if anyone could take the time to help me understand and solve this math problem. I'm overwhelmed with anxiety.
For a given interest​ rate, simple interest varies jointly as the principal and time. If ​$3000 left in an account for 5 years earned interest of ​$750, then how much interest would be earned in 7 ​years?
Found 2 solutions by ikleyn, MathTherapy:
Answer by ikleyn(52794)   (Show Source): You can put this solution on YOUR website!
.
Step 1.  Knowing the interest earned in 5 years, calculate the interest earned in 1 year.


         HINT.  It is  of $750.



Step 2.  When you know the result from n.1, you just know what to do next, isn't it ?


Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

Hi guys, I would be grateful if anyone could take the time to help me understand and solve this math problem. I'm overwhelmed with anxiety.
For a given interest​ rate, simple interest varies jointly as the principal and time. If ​$3000 left in an account for 5 years earned interest of ​$750, then how much interest would be earned in 7 ​years?
With I being the interest earned in 7 years, form a PROPORTION, the likes of:  

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