Hello,
2(l+w)=78
Divided 2 from both side
2(l+w)/2=78/2
l+w=39 feet
l=6w+4
Replace l with 6w+4
6w+4+w=39
7w+4=39
Subtract 4 from both side
7w=35
Divided 7 from both side
w=5 feet
l=6w+4
l=6(5)+4
l=30+4
l=34 feet. As a result, the length of the rectangle is 34 feet and the width of rectangle is 5 feet. Hope it help!
Answer:
Step-by-step explanation:
We start by adding 
to both sides, giving 
, which after simplifying gives 
.
We then add 
to both sides, giving 
, which after simplifying gives 
.
We can then divide both sides by 
, giving 
, which after simplifying gives 
, or . So, x is 5.
Answer:
You save 36 dollars.
Step-by-step explanation:
30% of 120 is 36.
You spend $84
Answer:
its 11/14 so its B hope this helps
The number of solutions that <span>exist for the system of equations is equal to the number of independent linear equations that consist the matrix. For example, in order to find the values of two independent variables, then we have to provide two independent equations according to law of degree of freedom.</span>
