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3 years ago

Use I = PRT to solve. (time in years)

Mathematics

1 answer:

vivado [14]3 years ago

8 0

Simple interest is $ 9

Solution:

Given that,

P = $ 400

$R = 9 \% = \frac{9}{100} = 0.09$

T = 0.25 years

The formula for simple interest is:

$I = P \times R \times T$

Where,

I is the simple interest earned

R is the rate of interest in decimal

T is the number of years

Substituting the values we get,

$I = 400 \times 0.09 \times 0.25\\\\I = 36 \times 0.25\\\\I = 9$

Thus simple interest is $ 9

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Italics by itself are comments, italics and underlines are helpful rules, bold highlights little facts.

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We then isolate or leave the variable 'x' on one side, usually the left-hand side and move all constants (numbers without letters attached such as 3, 4, 5..etc.) and variables (letters such as x, y, a, b..etc.) that do not have 'x', to the right-hand side of the equality symbol (=). This also includes terms such as 5x, -2y, 50z..etc.

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