Since angles A and C are equivalent, then angles B and D must also be equivalent. So if
angle B = angle D then...
7x + 15 = 8x
Now we just solve for x
7x + 15 = 8x
15 = 8x - 7x
15 = x
We Can check to see if it is correct by substituting 15 in for x in the equation..
7x + 15 = 8x
7 (15)+15 = 8 (15)
105 +15 = 120
120 = 120
It checks! angles B and D = 120 degrees
It is increase, because 15 is less than 18. Other way around, if the question is 18 to 15 yards, then that would be decrease, because it is getting smaller.
If you would like to know how much did the bag of grapefruit weigh, you can calculate this using the following steps:
7 1/2 pounds - 1 5/8 pounds of apples - 2 3/16 pounds of bananas = 7 1/2 - 1 5/8 - 2 3/16 = 15/2 - 13/8 - 35/16 = 120/16 - 26/16 - 35/16 = 59/16 = 3 11/16 pounds of grapefruit
The correct result would be 3 11/16 pounds of grapefruit.
Answer: 60 degrees
Explanation: If all angles are same, each angle is 60 degrees and adds up to 180.
First one 3.5 or in fraction 18/5
Second one 16.25