Help This Math Problem For Me

Introduction to help with math problem:

Mathematics is the study of quantity, structure, space, and change. Mathematicians seek out patterns, formulate new conjectures, and establish truth by rigorous deduction from appropriately chosen axioms and definitions. Mathematics is used throughout the world as an essential tool in many fields, including natural science, engineering, medicine, and the social sciences.(Source: From Wikipedia).

In mathematics, step by step explanation is very helpful to understand the problems easily. Now, we are going to get help with some math problems.

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Help some algebra math problems:


Math help-problem 1:

Add Fractions: 1/4 + 1/3

Solution:

The denominators of the given fractions are different. So, the common denominator of 4 and 3 is 12.

To find the corresponding value of numerator, we need to multiply 1/4 by 3 and multiply 1/3 by 4. So, Equivalent fractions of 1/4 and 1/3 are 3/12 and 4/12. Now the denominators are same.

So, (3/12) + (4/12)

Now add the numerators

(3+4)/12 =7/12

So the answer is 7/12.

Math help-problem 2:

Solve for the variable x: (x / 3) + 1 = 16

Solution:

(x / 3) + 1 = 16

Subtract 1 on both sides of the equation

(x / 3) + 1 - 1 = 16 – 1

(x / 3) = 15

Multiply 3 on both sides of the equation

3*(x / 3) = 15*3

x = 45

So, the variable x is 45.

Math help-problem 3:

Find the value of the expression: xy + xz + yz If  x=0, y=1, z=2

Solution:

Substitute the value of x, y and z in the given expression

xy + xz + yz = 0(1) + 0(2) + 1(2)

=0 + 0 +2

=2

So, the answer is 2.

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Help some geometry math problems:


Math help-problem 4:

Find the area of a circle of diameter is 60 cm (use pie = 3.14).

Solution:

The diameter of the circle is 60cm.

Radius = diameter / 2

So, the radius of the circle is 30cm

Area of the circle = pie*r2 = 3.14 × 302 = 2,826 cm2

Math help-problem 5:

Find the area of parallelogram whose base is 7cm and the height is 4cm.

Solution:

Area of the parallelogram = b × h

= 7 cm × 4 cm = 28 cm2

Math help-problem 6:

A triangle has a perimeter of 8cm. If one of the side is 1cm, another one side is 2cm then find the length of the third side?

Solution:

Perimeter of the triangle = addition of all the outer sides.

8cm = 1cm + 2cm + third side

Third side=8cm – 3cm =5cm

So, the third side is 5cm.