If the sum of a number and two is doubled the result is three less than the number

Step-by-step explanation:

a number =                                                     x

Sum of a number and two:                           (x + 2)

(Sum of a number and two) is doubled: 2 * (x + 2)

The result (put an equal sign):                         =

Three less than the number:                         x - 3

Now just put The two bolded parts together and an equal sign between them.

2(x + 2) = x -3                                                    Remove the brackets

2x + 4 = x - 3                                                     Subtract x from each side

2x - x + 4 = x -x - 3                                            Combine

x + 4 = - 3                                                          Subtract 4

x +4 - 4 = -3 - 4

x = - 7

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950