When the ratio is 1:1, either is 1/(1+1) = 1/2 the total.
The answer is 29 and 31 because by the definition of a prime number it is a natural number that is greater than 1 and has no positive divisors other than 1 and itself.
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

Answer: 13b + 43
You want to substitute the value of the variable into the equation and simplify it. When doing this, the answer is 13b + 43.
Step-by-step explanation:
Hope this helps =)
Do the math urself stop bugging ither people to do it for u thats why ur not supposed tonsleep durring class so u can learn how to do it so stop talking to ur freinds and listen