Distribute the 2 to all terms within the parenthesis
2(x + 8) = 2x + 16
2x + 16 = x + 20
Isolate the x. Subtract x from both sides and 16
2x (-x) + 16 (-16) = x (-x) + 20 (-16)
2x - x = 20 - 16
Simplify. Combine like terms.
x = 4
C. 4 is your answer
hope this helps
D) 8.7lbs
Subtract $2.50 from the total cost, because that's a fixed number, then do more math and boom, just like magic, it's solved.
I am going to show you how easy this is. Once you understand, you will be able to do this forever.
:
Assuming the side of the rectangle are (L) length and (W) width, the perimeter:
2L + 2W = 234
:
"the rectangle is twice as long as it is wide,", the equation for this statement:
L = 2W
:
In the first equation, we can replace L with 2W, then we have
2(2W) + 2W = 234
4W + 2W = 234
6W = 234
Divide both sides by 6
W = 234%2F6
W = 39 meters is the width
:
Remember it said the length is twice the width, therefore:
L = 2(39)
L = 78 meters is the length
:
:
Check this by finding the perimeter with these values
2(78) + 2(39) =
156 + 78 = 234
Answer:
Option D. 36°
Step-by-step explanation:
we know that
The sum of the exterior angles of a polygon must be equal to 360 degrees
In a regular polygon all the exterior angles are congruent
so
To obtain the measure of each exterior angle divide 360 by the number of sides
In this problem the number of sides is 10
360/10=36°
Answer:
First answer: The sum of the two angles equals 70 degrees.
Second answer: The complimentary angle is 45.6, and the supplementary angle is 135.6.
I hope this helps! :)
