Answer:
23 marbles
Step-by-step explanation:
3 groups of 7 = 21 +2 = 23
4 groups of 5 = 20 +3 = 23
Scale factor = new length/old length
scale factor = 10/2.5 = 4
The scale factor is 4.
25 scholars × 3 candies = 75 candies
5 candies for himself = 80
Answer: 80 candies
Answer:
Complex roots [Refer picture]
Step-by-step explanation:
I am not sure if it's correct.
But we will get complex roots
The answer is, 4 + 8 + 12 + 16 ... rule is 4n.
Explanation:
one square has 4 toothpicks, then you added 4 picks (because you started with zero squares).
4 squares have 12 toothpicks, then you added 8 toothpicks to pass from one square to 4 squeres.
If you follow that reasoing you get to realize that the additions are 4, 8, 12, 16.
