Answer:
Part B: $544.5
Step-by-step explanation:
PART B:
The area of the carpet is the product of its dimensions:
.
The carpet costs $2.00 per ; therefore, the total cost of the carpet will be
.
Also, the installer charges $0.75 per to install the carpet; therefore, the total cost of installation will be
.
Thus, the total amount it will cost Amy to buy the carpet and have it installed will be
Answer:
x = 1; y = 5
Step-by-step explanation:
-2x + 3y = 13
;
y = 7x - 2
Since the second equation is already solved for y, substitute y of the first equation with 7x - 2.
-2x + 3y = 13
-2x + 3(7x - 2) = 13
-2x + 21x - 6 = 13
19x - 6 = 13
19x = 19
x = 1
Now substitute x of the second equation with 1 and solve for y.
y = 7x - 2
y = 7(1) - 2
y = 7 - 2
y = 5
Solution: x = 1; y = 5
50 is the answer to this question
Answer:
C. 7x + 45
Step-by-step explanation:
To start answering this question, let's first distribute the 6 * ( x + 7 ) so that we can add like terms to simplify.
So let's multiply the 6 out to the ( x + 7 ) to get ( 6x + 42 ).
Now the complete expression reads: 6x + 42 + ( x + 3 )
With this, we can add all the like terms( 6x and x, and 42 and 3) together.
So we end up with 6x + x + 42 + 3 = 7x + 45
So the correct answer is C. 7x + 45