Answer:
a = 6
Step-by-Step Explanation:
9 + 8a = 57
8a = 57 - 9 (subtract 9 from both sides)
8a = 48 (then divide 8 from both sides to get "a" alone)
a = 48/8
a = 6
The correct answer is D :)
Answer:
Then the answer to the system is the point (-1, 3)
which corresponds to x = -1 and y = 3
Step-by-step explanation:
Start by dividing the first equation by 3 on both sides, and get:
x + y = 2
now multiply it by 5 in order to be able to eliminate the term in y in the combining of both equations:
5 x + 5 y = 10
+
9 x - 5 y = - 24
___________
14 x + 0 = -14
solve for x by dividing both sides by 14:
x = -14/14 = -1
Use the x = -1 answer in the equation 3 x + 3 y = 6 and solve for y:
-3 + 3 y = 6
add 3 on both sides:
3 y = 9
divide both sides by 3 to isolate y:
y = 3
Then the answer to the system is the point on the plane (-1, 3)
which corresponds to x = -1 and y = 3
The length of fourth side is: 8a-2
Step-by-step explanation:
Given
Perimeter = P = 39a-7
The perimeter is given by:
The length of fourth side is: 8a-2
Keywords: Perimeter, trapezoid
Learn more about perimeter at:
#LearnwithBrainly
I'm not sure but the answer would be 2w+1236.5+527 ≤ 3000
The answer to that equation would be w ≤ 618.25
The length is 618.25
The width is 618.25