chloecolleen chloecolleen
  • 02-04-2020
  • Mathematics
contestada

Eight is added to a number and the sum is doubled, the result is -11 less than the number. Find
the number

Respuesta :

larawooller1
larawooller1 larawooller1
  • 02-04-2020
If you don’t know what a number is, you should substitute it for x and make an equation with the information you have been given. This gives:

(x + 8) x 2 = x - 11

Then, solve:

2x + 16 = x - 11

2x = x -27

x = -27

This can then be checked by using the number in the original text.

-27 + 8 = -19

-19 x 2 = -38

-38 is 11 less than -27.

Hope this helps :)
Answer Link

Otras preguntas

What is the name of the Speaker of the House of Representatives now?
Given the balanced equation representing a reaction: 4Al(s) + 3O2(g) ==> Al2O3(s) As the aluminum loses 12 moles of electrons, the oxygen (1) gains 4 moles o
What force is thought to be an important cause plate tectonic motion ?
which is understanding of classification an important skill
What is the approximate height of the average adult in centimeters?
round 75.4614 to the nearest thousandth
We elect a President for how many years?
A machine with a mechanical advantage of 10 is used to produce an output force of 250 newtons. What input force is applied to this machine
Convert 7.0055 into a mixed number in simplest form?
The concentration of a solution can be expressed in (I ) milliliters per minute (2) parts per million (3) grams per Kelvin (4) joules per gram