RATIONAL NUMBER- a number that can be written as a quotient of two integers, where the divisor is not 0. Examples are
½, 0.3, -6, 3 ½
and any repeating decimal(shown with a bar over the digits).
Showing posts with label Math 7 Notes. Show all posts
Showing posts with label Math 7 Notes. Show all posts
Math 7 Notes
Math 7 Notes
RATIONAL NUMBER- a number that can be written as a quotient of two integers, where the divisor is not 0. Examples are
½, 0.3, -6, 3 ½
and any repeating decimal(shown with a bar over the digits).
RATIONAL NUMBER- a number that can be written as a quotient of two integers, where the divisor is not 0. Examples are
½, 0.3, -6, 3 ½
and any repeating decimal(shown with a bar over the digits).
Math 7 Notes
Like Terms
When a plus sign separates an algebraic expression into parts, each part is called a term
Like terms contain the same variables such as 2x and x. A term withhout a variable is called a constant. Constant terms are also like terms.
3 + 2x + 5 + x + 6
2x and x are like terms
3, 5, and 6 are constants and like terms.
Area of Parallelogram, Triangles and Trapezoids
A parallelogram is a special kind of quadarilateral - with opposite sides parallel and opposite sides congruent.
The area of a parallelogram can be found by multiplying the measures of its base and its height.
The base can be any side of the parallelogram that contains one end of the altitude (top or bottom- not inclined side a perpendicular line can not be drawn to the inclined side)
The height is the length of the segment perpendicular to the base with endpoints on opposite sides - usually shown by a broken line (in the picutre below the height is not shown with a broken line but designated by the letter h) and the symbol for a right triangle.
When a plus sign separates an algebraic expression into parts, each part is called a term
Like terms contain the same variables such as 2x and x. A term withhout a variable is called a constant. Constant terms are also like terms.
3 + 2x + 5 + x + 6
2x and x are like terms
3, 5, and 6 are constants and like terms.
Area of Parallelogram, Triangles and Trapezoids
A parallelogram is a special kind of quadarilateral - with opposite sides parallel and opposite sides congruent.
The area of a parallelogram can be found by multiplying the measures of its base and its height.
The base can be any side of the parallelogram that contains one end of the altitude (top or bottom- not inclined side a perpendicular line can not be drawn to the inclined side)
The height is the length of the segment perpendicular to the base with endpoints on opposite sides - usually shown by a broken line (in the picutre below the height is not shown with a broken line but designated by the letter h) and the symbol for a right triangle.
Math 7 Interest Word Problem
Maggie
borrowed $3,600 to buy a used car. She
will be paying $131.50 each month for the next 36 months. Find the simple interest rate for her loan.
First find the total amount of money Maggie will pay.
$131.50 x 36 = $4,734
Maggie will pay a total of $4,734.
She will pay $4,734. - $3,600 or $1,134 in interest.
The loan will be for 36 months or 3 years.
Use the simple interest formula to find the interest rate.
Interest = principal x rate x time
1,134 = 3,600 x r x 3
1,134 = 10,800 r
0.105 = r
The simple interest rate is 10.5%
Subscribe to:
Posts (Atom)