Answer:
9-6r
Step-by-step explanation:
Distribute the 9 into the parenthesis:
9(1-r)=9-9r
Add the 3r and combine like terms:
9-9r+3r=9-6r
23/40
you need to find a common denominator
Answer:
104
Step-by-step explanation:
Answer:
145 or 125
Step-by-step explanation:
90+35= 125
180-35= 145
Answer:
The value of the constant of proportionality r is 1
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or
Find the value of the constant of proportionality r

For x=5.8, y=5.8
substitute


The linear equation is

therefore
The value of the constant of proportionality r is 1