4x+12=20
-12 -12
——————
4x=8
divide by 4 on both sides
x=2
Answer:
Step-by-step explanation:
B
Answer: D: Square Root Of 5
Step-by-step explanation: 30/6 is 5, now fill in the sqrt symbol. Hope this helped. (This problem was one of the simpler, friendlier numbers.)
Answer: √5
2.7 is a rational number because it's a terminating decimal which means that the decimal does end and all terminating decimals are rational numbers.
-3 is a rational number because it's an
integer and all integers are rational.
√4 is rational because it's a perfect square which means that a number can be multiplied by itself to get 4 and that number is 2.
√5 is no rational! It's impossible to find a whole number multiplied by itself to give us 5 which means that it's
non-terminating and non-repeating.
Answer:
length = 20m
width = 16m
(Anyone can correct me if I'm wrong)
Step-by-step explanation:
Firstly, I would assume that you made a unit error for the perimeter, which I would believe is meters.
With that, we can now make these statements:
Perimeter = 72m
Perimeter = 2l + 2w
therefore,
2l + 2w = 72
Since the question states the width is 4 meters less than the length, we can make this statement,
w = l - 4
We can now substitute this into the first statement we made, 2l + 2w = 72
2l + 2(l - 4) = 72
2l + 2l - 8 = 72
4l - 8 = 72
4l = 80
l = 20m
Using the second statement, w = l - 4, we can now find w,
w = 20 - 4
w = 16m
Therefore, the length is 20m and the width is 16m
