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Zigmanuir [339]
3 years ago
10

1. Lin deposited $300 in her savings account which has a 2% interest rate per year. How much is in her account after 1 year? Aft

er 2 years?
2. Diego wants to sell his bicycle. It costs $150 when he bought it but has depreciated by 15%. How much should he sell it for?
Mathematics
1 answer:
Andrews [41]3 years ago
3 0

Step-by-step explanation:

1. Given data

Principal p = $300

Rate r = 2% = 2/100= 0.02

Time t= 1 year and 2 years

Final amount A =?

Applying the simple interest formula

For the first year

A= p(1+ rt)

A= 300(1 +0.02*1)

A= 300(1.02)

A= $306

After one year her will have $306

For the second year

Principal p= $306

A= 306(1 +0.02*2)

A= 306(1+0.04)

A= 306(1.04)

A= $318.24

After two years she will have $318.24

2. Given data

Cost of bicycle = $150

Depreciation = 15%

Firstly let us calculate 15% of $150

(15/100)*150 =0.15*150

= $22.5

Since the value depreciated

We will minus the the depression from the initial amount

New amount = 150-22.5=

$127.5

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