Answer:
c = 3d
Step-by-step explanation:
answer
c = 3d
Double check:
if d = 2, c = 3 x 2 = 6
if d = 3, c = 3 x 3 = 9
if d = 5, c = 3 x 5 = 15
if d = 6, c = 3 x 6 = 18
Answer:
x = 108°
Step-by-step explanation:
In a trapezoid, each lower base angle is supplementary to the upper base angle on the same side.
72° is a lower base angle and x the upper base angle on the same side, hence
x + 72 = 180 ( supplementary angles sum to 180° )
subtract 72 from both sides, thus
x = 108°
Answer:
75=2x-13
75+13=2x-13+13
88=2x
88÷2=2x÷2
44=x
Step-by-step explanation:
Answer:
Step-by-step explanation:
X=3. Hope this helps
Answer:x = - 5
y = 2
Step-by-step explanation:
The given system of simultaneous equations is expressed as
x + 3y = 1 - - - - - - - - - - - - - -1
4x + 4y = -12 - - - - - - - - - - - 2
We want to eliminate x. Multiplying equation 1 by 4 and equation 2 by 1, it becomes
4x + 12y = 4
4x + 4y = - 12
Subtracting the second equation from the first equation, it becomes
8y = 16
y = 16/8 = 2
Substituting y = 2 into equation 1, it becomes
x + 3 × 2 = 1
x + 6 = 1
x = 1 - 6 = - 5
