Do you have answer choices? Maybe something like this: 9+1=10 10+6=16?
4x - 9 = 6 - x
4x + x = 6 + 9
5x = 15
x = 3
Answer: 22 double chocolate cookies
Step-by-step explanation:
25 oatmeal raisin
38 sugar cookie
65 chocolate chip
22 double chocolate
Answer:
approximately 7 hours
see the explanation
Step-by-step explanation:
The picture of the question in the attached figure
Let
x ----> the time worked in hours
y ----> the amount earning in dollars
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
In a proportional relationship the constant of proportionality k is equal to the slope m of the line <u><em>and the line passes through the origin</em></u>
so
In this problem we have a proportional relationship
step 1
Find approximately how many hours would it take Delia to earn $250 ?
Looking at the graph
For y=$250 The value of x is approximately 7 hours
see the attached figure N 2
step 2
Find the exact value
from the graph take the point (5,175)
Find the value of k
----> 
The linear equation is

For y=$250
substitute

solve for x
