5x - 20 = 8x - 65
-20 = 3x - 65
3x = 45
x = 15
2[4 − 7(3x + 4y)] + 2[3x(−2y)]
2[4 - 21x -28y] + 2[-6xy]
8 - 42x - 56y -12xy
the perimeter of given rectangular garden is (8 - 42x - 56y -12xy).
Answer:
1080 dollars
Step-by-step explanation:
Well you said yards and meters but imma ingore that.
So the perimeter is 27+27+18+18 = 90
90*12= 1080
Answer:
the answer is about 8 cuz the answer shows 7.12 if you divide mentally
Answer:
a = 49°
Explanation:
You use the rule ‘exterior angle of a triangle’ which states that the exterior angle is equal to the sum of the two opposite interior angles.
To put it mathematically:
a + a = a + 49° (Ext angles of triangle)
a = a - a + 49°
a = 49°