Eleven more than twice a number is 18. find the number.

Your answer is 3.5

Step-by-step explanation:

3.5 x 2 = 7

11 + 7 = 18

3.5 is your answer

x=3.5

Step-by-step explanation:

First make an equation

2x+11=18

Now -11 from both sides

2x=7

Now /2

x=3.5

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x