All categories

3 years ago

What is the formula for Simple Interest? ...What does each letter mean?

Mathematics

1 answer:

ella [17]3 years ago

6 0

Step-by-step explanation:

Simple Interest Formula
P = Principal Amount. I = Interest Amount. r = Rate of Interest per year in decimal; r = R/100. R = Rate of Interest per year as a percent; R = r * 100.
Simple interest is an application of percentage. Understanding the concept of simple interest is not only important for you to know how to solve problems in class, but also is a fundamental skill to help you manage your finances. With the basic knowledge on how the concepts work, you get empowered to make good financial decisions. In this article, we are going to learn how to calculate simple interest and the knowledge to solve real life problems. Let’s first start by defining the terms involved in simple interest.
The principal amount (P)
The principal is the money borrowed or initial amount of money deposited in a bank. The principal is denoted by a capital letter “P.”

You might be interested in

Can someone help me with these problems and can you number them

Nataly [62]

The correlation is a negative correlation, because weights and city MPG do not increase at the same time

<h3>The graph of the table of values</h3>

To graph of the table of values, we plot

The weights on the x-axis
The city MPG on the y-axis

See attachment for graph

<h3>Type of correlation</h3>

The correlation is a negative correlation, because weights and city MPG do not increase at the same time

<h3>The equation of the line of best fit</h3>

To do this, we make use of a graphing calculator.

From the graphing calculator, we have the following summary:

Sum of X = 463
Sum of Y = 388
Mean X = 28.9375
Mean Y = 24.25
Sum of squares (SSX) = 862.9375
Sum of products (SP) = -857.75

The line of best fit equation is

y = bx + a

Where

b = SP/SSX = -857.75/862.94 = -0.99

a = MY - bMX = 24.25 - (-0.99*28.94) = 53.0

So, we have:

y = -0.99x + 53

Hence, the equation of the line of best fit is y = -0.99x + 53

<h3>The weight for 30 MPG</h3>

This means that y = 30

So, we have:

-0.99x + 53 = 30

Subtract 53 from both sides

-0.99x = -23

Divide by -0.99

x =23

Hence, the predicted weight is 23 pounds

<h3>The city MPG for 1500 pounds</h3>

This means that x = 1500

So, we have:

y = -0.99 * 1500 + 53

Evaluate

y = -1432

Hence, the city MPG for 1500 pounds is -1432

Read more about linear regression at:

brainly.com/question/25987747

#SPJ1

4 0

2 years ago

25/10 as a mixed number

nata0808 [166]

2 1/2

10 goes into 25 2 times with a remainder of 5 so , you get 2 5/10
5/10 reduces to 1/2

7 0

3 years ago

Read 2 more answers

The ratio of the measures of the angles of a triangle is 2:3:10. What is the measure of the smallest angle?

cricket20 [7]

Answer w2

Step-by-step explanation:

8 0

3 years ago

Select the correct answer.

Marta_Voda [28]

Remember x is x and f(x) is same thing as y.

f(5) = 4

It is same thing as saying, when x = 5, y aka f(x) should be 4. Aka the point (5,4)

Let’s look at D, if x =5 then f(x)=5? No, it should equal 4. So this is wrong. It is also not linear. So NOT D

Lets look at C, if x =5 then
1/5(5)+3 =
5/5 + 3 =
1+3 =
4

So, f(x) aka y = 4. Is this correct? Yes when x =5, y indeed should equal 4, but it is not linear. So NOT C

Lets look at B, if x=5 then,
2^5 -28 =
32 - 28 =
4

So, f(x) aka y = 4. Is this correct? Yes when x =5, y indeed should equal 4, AND it is linear SO THE ANSWER IS B

Check A too, it gets y=14 so thats wrong as it is not 4.

5 0

2 years ago

What system of linear inequalities is shown in the graph? Enter your answers in the boxes.

riadik2000 [5.3K]

First, find the equation of the lines:

y=-2x+2 and y=1/3x+2

We see that the shaded part is below the y=1/3x+2 graph, so it becomes y<1/3x+2 (It's not ≤ since it's a dotted line)

For the y=-2x+2, the shaded part is under the line as well, so it becomes y≤-2x+2 (Here, we include the ≤ since it's a solid line)

So your answer is y<1/3x+2 and y≤-2x+2.

4 0

3 years ago

Read 2 more answers