D, it decreases by 6 every time while the others are multiplied by number
V (cone) = (1÷3) × (r×r×h) л cm3
3 cone = 1 cylinder (if "h" and "r" is same)
There is two cone...
1st one: (1÷3) × 3×3×5 л cm3 = 15л cm3
2nd one: (1÷3) × 3×3×8 л cm3 = 24л cm3
15 + 24 = 39л cm3
X=2
x=15
4x+1=9
-1 -1
4x=8
4/4x=8/4=2
x/5-1=2
+1 +1
x/5=3
(5) (5)
x=15
Answer:
The exam was out of 75.
Step-by-step explanation:
You know that he earned 65% so more than half his answers were correct.
Then, you would guess and check try 49/60, 49/70, and go up by 10s or 5s. You will then realize that 49÷75 equals 65.333. This rounds up to 65.
(B) Opposite sides are equal (otherwise, trapezoid, etc)
