Test on 07th grade math

Introduction to practicing grade 7 math:

In mathematics 7th grade math test is a level where we can learn about the entire basic maths. In grade 7 the following topics are processed. They are integers, fractions, algebraic formats,geometry shapes,different types of graphs, measurements,probabilities and other all number system.

Description to Practicing Math Problems for Grade 7:

The following topics are covered under grade 7 which is very easy to understand as well as for practicing those problems,they are

* Number system
* Algebra
* Geometry
* Probability
* Measurements. To get more help on Study material

General experiments for grade 7 math probability:

* Tossing two coins ( totally two possible outcomes)
* Rolling the two dices( totally 36 possible outcomes)

Fraction Circles

Definition of Circle:
In this article let me help you with fraction circles. A circle is a simple shapes of Euclidean geometry consisting of those points in planes which are equidistant from a given point called the center. The common distances of the points of a circle from its center is called its radius.
Circles are simple closed curve which divides the plane into two regions, an interior and an exterior

Definition of Fraction:

Fraction:
Fraction is a one form in numbers representation which is used to represent a part of whole. For examples, there are 5 parts of apples, in which 3 of them are taken. This could also help us on geometry questions. It can be represented in the fraction form as . It represents the two different values that are called as denominator and numerator. Bar symbol used to separate these numerator and denominator. In the given example 3 is numerator and 5 is denominator.

Help with area of shape

Introduction of solve find area of shape:
Area is a quantity expressing the two-dimensionals size of a defined part of a surface, typically a region bounded by a closed curve. The surface areas of a 3-dimensional solid is the total area of the exposed surface, such as the sum of the areas of the exposed sides of a polyhedron. Area is an important invariants in the differential geometry of surfaces

Example Problems of Solve Find Area of Shape:
Example 1:
Find the surface area of sphere with radius 8.7 meter?
Solution:
Step 1: Surface area of sphere = 4 pi radius 2.
Step 2: We know that radius = 8.7 m.
Step 3: Plug the radius value into the formula. This could also help us on angle of refraction
Step 4: Volume of sphere = 4 3.14 8.7 8.7
Step 5: So, we get 950.66 m2.

Help with Factoring

Factoring Help - Example Problems
In this article let me help you on factoring help with the help of following example.
Example: 1

Solve the following quadratic function f(x) = x2 + 15x + 54 = 0, with the help of factoring method.

Solution:

Let us first split the middle term +15x as 9x+ 6x

[Because (9x) × (6x) = 54x2 and 9x+6x = 15x].

So,

f (x) = x2 +9x +6x + 54

f (x) = x (x + 9) +6 (x +9)

f (x) = (x + 9)(x+ 6)

Now, f(x) = x2 + 15x + 54 = 0 can be rewritten as (x + 9)(x+ 6) = 0. This could also help us with exponential graph

So, the values of x for which x2 + 15x + 54 = 0 are the same for which (x + 9) (x+ 6) = 0. This could also help us on circle area

That is either (x + 9) = 0 or (x+ 6) = 0

Now, x +9 = 0 gives

x = -9

x + 6 = 0 gives x = -6

Help with rational inequalities

Today let me help you with rational inequalities. Since we had studied about rational numbers let me briefly give you an example to help you understand better.

Inequalities:

An inequality means, two values are not equals. That is A is not equal to B. The following symbols are used in denoting the inequality.

A <>

A > B. it says that A is greater than B.

These are called as the strict inequality.

A>=B. it says that A is greater than or equal to B.

A<=B. it says that A is less than or equal to B. This could also help us on projectile motion formula

Here we are going to learn, solving rational inequalities.

how to find percent

In this article let me help you on how to find percent. Let me show you a example on thii to help you better. Keep reading if you still have any doubts on this do leave your comments.

Here is an example to show how to find percentage of a number.

Example : Calculate 25% of 70

Solution :

Given Number has to be written as,

25  x 70
100

or it can be simplified as

 1  x 70
4

 70 
4

= 1.75

Practice .... .. This could also help us on percent to fraction calculator

1) Calculate 42% of 60

2) Calculate 71% of 86

3) Calculate 152% of 74