Answer:
7(3x-2)
Step-by-step explanation:
you can factor it down with GCF ( Greatest common factor)
Answer:
-6 and 3
Step-by-step explanation:
3-(-6)=3 +6=9 (two negative signs= positive sign)
-6 +3 = -3
It you have 6 negative tiles and add 3 positive tiles, the 3 negative tiles cancel 3 positive tiles. So hat is left is 3 negative tiles
I believe the answer is A, a line that shows only one solution to the equation
Answer:
<em>The plumber will charge $275</em>
Step-by-step explanation:
<u>Models</u>
Models are used to explain and predict the behavior of real objects or systems and are used in a variety of scientific disciplines.
The situation described in the question asks us to build a mathematical model for the charges for the service of a plumber.
The base fee is often called the fixed fee, which charged even if there is no service time. The plumber charges a base fee of $55.
The variable fee is that who changes for each hour worked. The plumber charges $55 per hour, so the charge for t hours of service is 55t.
The total charges of the plumber are modeled as:
C(t)=55t+55
If the plumber works t=4 hours, the cost will be:
C(4)=55*4+55=$275
The plumber will charge $275
Answer:
The length of the first piece is 5 ft
The length of the second piece is 20 ft
The length of the third piece is 25 ft
Step-by-step explanation:
Let
x----> the length of the first piece
y ---> the length of the second piece
z ---> the length of the third piece
we know that
-----> equation A
-----> equation B
----> equation C
substitute equation B and equation C in equation A and solve for x
<em>Find the value of y</em>
<em>Find the value of z</em>
therefore
The length of the first piece is 5 ft
The length of the second piece is 20 ft
The length of the third piece is 25 ft