Joe bought 28 bottles of coke, some regular and some Diet coke regular coke is $1.25 and Diet is $1.50 altogether he spent a total of $37 How many regular bottles of coke did joe buy?

Joe bought 20 bottles of regular coke.

Step-by-step explanation:

Let x represent number of regular coke and y represent number of diet coke.

We have been given that Joe bought 28 bottles of coke, some regular and some Diet coke.

We can represent this information in an equation as:

We are also told that regular coke is $1.25 and Diet is $1.50 altogether he spent a total of $37. We can represent this information in an equation as:

Upon substituting equation (1) in equation (2), we will get:

Therefore, Joe bought 20 bottles of regular coke.

a = 11 : 4

b = 38

c = 1 for every 6

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl