Answer:
t = 39
Step-by-step explanation:
the diagonals of a parallelogram bisect each other, therefore t = 3t - 78 further solving this equation we get
2t = 78 and then t = 39
Answer:
-11
Step-by-step explanation:
distribute: -8q-7=48-3q
move like terms to other sides of the equal sign: -5q=55
divide 55/-5
you get -11
Answer:
X = 45°
Y = 72°
Step-by-step explanation:
There is a supplementary angle (an pair of angles that create a straight line is equal to 180°) and there is the rule that all three angles in a triangle equal 180° as well.
Answer:
61
Step-by-step explanation:
154 * 2/5 = 61.6
4(2r + 8) = 88
mutiply the bracket by 4
(4)(2r)(4)(8)= 8r+32
8r+32= 88
Move +32 to the other side
Sign changes from +32 to -32
8r+32-32= 88-32
8r= 88-32
8r= 56
divide by 8 for both sides
8r/8= 56/8
Cross out 8 and 8, divide by 8. Then becomes r
r= 7
Answer: r= 7
