Answer:
Y=2
Step-by-step explanation:
both sides just have to be the same so y-3 is 2x +1
x is -1 so -2 +1=-1 and y-3=-1
It is 85 degrees out side of the temperature rose 3 degrees
Answer:
CAB = 54
ABC = 21
ACB = 105
DCB = 75
Step-by-step explanation:
18x - 15 = (13x - 11) + (4x + 1)
18x - 15 = 17x - 10
x = 5
CAB = 13x - 11 = 13(5) - 11 = 65 - 11 = 54
ABC = 4x + 1 = 4(5) + 1 = 20 + 1 = 21
ACB = 180 - (CAB + ABC) = 180 - (54 + 21) = 180 - 75 = 105
DCB = 180 - ACB = 180 - 105 = 75
1. Calculate the rectangular prism
4*7 = 28
2. Calculate the triangle
(10-4)*7*0.5
42*0.5 = 21
3. Add them up
21 + 28 = 49
Answer: 49