vfndvunsvangel vfndvunsvangel

07-02-2017
Mathematics

contestada

Karla is given the equation 10x + 15 = 20 to solve. She says the solution is 1/2 . Which reason justifies her solution? HELP THIS IS URGENT

Respuesta :

Nirina7 Nirina7

14-02-2017

10x + 15 = 20 so 10x = 20 - 15 =5, and 10x=5 means x=5/10=1/2

Answer Link

HomertheGenius HomertheGenius

19-02-2017

10 x + 15 = 20
10 x + 15 - 15 = 20 - 15
10 x = 5
x = 5 : 10
x = 1/2 ( the solution )
We can justify it:
10 * 1/2 + 15 = 20
5 + 15 = 20
20 = 20 ( correct )

Answer Link

Otras preguntas

To form the plural for most 1 nouns, add an s. True False

cytokinesis is the division of the cell's_______

What is: A) 7.2% of 15 L B) 5.75% of $17 000 C)6 1/5% of $90 D) 2/3% of $200 000

what are the remarks regarding the montaue and capulets that mercutio makes three times as he is dying

The loss of topsoil in very dry areas of the world is known as *A. *soil intensification. *B. *desertification. *C. *water intensification. *D. *soil inhabitati

Which of the following sentences demonstrates the correct use of capitalizing direction words? A. Poor Alex thought he was driving West. B. Are you headi

Solve for x: 6 ( x - 3 ) = 30

Burma is one of the countries that borders India. a. True b. False

The League of Nations was supported by? a) Wilson b) Washington c) Jefferson d) Aboriginals

Which of the following groups are the people who first settled the land on the bend of the Tiber River that was to become Rome? A. Etruscans B. Greeks C. Latins