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nikdorinn [45]
3 years ago
12

Find the simple interest earned if you invest $545 in a savings account that earns 3.25% for two years

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
4 0

\boxed{I=\$35.43}

<h2>Explanation:</h2>

The simple interest formula is:

A=P(1+rt) \\ \\ \\ A: \ is \ the \ Final \ Investment \Value \\ \\ P: \ is \ the \ Principal \ amount \ of \ money \ to \ be \ invested \\ \\ r: \ is \ the \ rate \ of \ interest \\ \\ t: \ is \ \ Number \ of \ Time \ Periods

First, converting r percent to r a decimal

r = 3.25\%=\frac{3.25}{100}=0.0325 \  per \ year

Solving our equation:

A=545(1+0.0325\times 2) \\ \\ A=580.425 \\ \\ Rounded \ to \ the \ nearest \ cent: \\ \\ A=\$580.43

So the interest earned if you invest $545 in a savings account that earns 3.25% for two years can be calculated as:

I:Interest \\ \\ \\ I=A-P \\ \\ I=580.43-545 \\ \\ \boxed{I=\$35.43}

<h2>Learn more:</h2>

Simple interest: brainly.com/question/11911443

#LearnWithBrainly

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Yes

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Answer:

Step-by-step explanation:

We have to graph a line y = 3 - x which has the slope = -1 and y intercept 3.

We will select two points where line intersects at x = 0 and y = 0

The given line will intersect x-axis at (3, 0) and at y- axis (0, 3).

Joining these two points we can draw a straight line showing y = -x + 3

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We will convert this equation in vertex form first to get the vertex and line of symmetry.

Standard equation of a parabola in vertex form is

y = (x - h)² + k

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y = (x + 0.5)² - 12.25

Therefore, vertex will be (-0.5, -12.25) and line of symmetry will be x = 0.5

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y = (0+0.5)² - 12.25

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Now we have to find the points of intersection of the given line and parabola.

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y = 3 + 5 = 8

Therefore, points of intersection will be (3, 0) and (-5, 8)

 

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