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The formula I = prt gives the simple interest / earned on an account where an amount p is deposited at an interest rate r for a certain number of years t. Use the table to order the accounts from least to greatest interest earned after 5 years.


And the table is Account: A p ($) 350 r (%) 4

B p ($) 500 r (%) 3.5

C p ($) 500 r (%) 4.25 Yes this is somehow an elementary question

Verified Answer :

C p ($) 500 r (%) 4.25

Answer:

C < B < A

Step-by-step explanation:

Given formula of simple interest,

I = prt

Where,

p = principal amount,

r = rate per period,

t = number of periods,

A) If p = $ 350, r = 4% = 0.04, t = 5 years,

Then the simple interest is,

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B) If p = $ 500, r = 3.5% = 0.035, t = 5 years,

Then the simple interest is,

\(I_2=500\times 0.035\times 5=\$ 87.5\)

C) If p = $ 500, r = 4.25 % = 0.0425, t = 5 years,

Then the simple interest is,

\(I_3=500\times 0.0425\times 5=\$ 106.25\)

∵ \(I_3 < I_2 < I_1\)

Hence, the accounts from least to greatest interest earned after 5 years.

C < B < A