In the early months of some year, one site added 0.2 million new accounts every day. at this rate, how many days would be needed to add 10million new accounts?

50 days

Step-by-step explanation:

It's simple, we just have to express this as an equation.

x we will take it as the number of days we do not know.

so..

(0.2 M * x) = 10 M

we divide on both sides by 0.2 M.

x *  0.2 M / 0.2M  = 10 M / 0.2 M

we simplify

x = 10M / 0.2 M

finally we only solve and the result of x will be the days it took.

x = 50

50 days

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

7.3

step-by-step explanation: