winnie9 winnie9

02-11-2016
Mathematics

contestada

4x-9=10x trying to solve for a perimeter of a square

Respuesta :

nk102777 nk102777

02-11-2016

The perimeter of a rectangle is equal to the sum of all sides of the rectangle.P=L+L+W+W=2L+2WP=L+L+W+W=2⁢L+2⁢WSubstitute the values of the length L=10xL=10⁢x and width W=(4x−9)W=4⁢x-9 into the formula for the perimeter of a rectangle.P=2⋅(10x)+2⋅(4x−9)P=2⋅10⁢x+2⋅4⁢x-9Simplify each term.
P=20x+(8x−18)P=20⁢x+8⁢x-18Simplify by adding terms.
P=28x−18

Answer Link

Otras preguntas

In a class of 35 students, 25 girls averaged 92% on the last test, while the 10 boys averaged 85% on the same test. What is the average for the entire class on

In what respect does an atom of magnesium differ from a magnesium ion (Mg^{2+})? (A)The ion has a more stable electronic arrangement than the atom. (B)The pos

Put brackets in the expression below so that it's value is 45.024. 1.6 + 3.8 * 2.4 *4.2 (*= times )

what is the sum of 6 7/8 + 4 5/8

how are the themes and topics different

what is the answer to this question -√(12)+5√(75)

Work out the number that is halfway between 27 times 38 and 33 times 38.Show your working out aswell.

Yolanda owns 4 rabbits. She expects the number of rabbits to double every year.a) after how many years will she have 64 rabbits?b) write and equation to model t

Work out the number that is halfway between 27 times 38 and 33 times 38.Show your working out aswell.

How is carbon dioxide obtained?