Answer:
20
Step-by-step explanation:
You have to fill in 6 slots _ _ _ _ _ _.
Since first digit must be 4, there is only 1 way to fill in the 1st slot.
with the 5 slots, we fill in the 6s first, 3 of them.
So we have 5 options and 3 items to fill, (5 choose 3).
Then 2 ways to fill 1 and 1 way to fill 5. (It doesn't matter if you pick 5 or 1 first).
So it becomes (5C3) * (2C1) *(1C1)
= 1 * 5!/(3!)(5-3)! * (2) * 1
= 20
Answer:
24
Step-by-step explanation:
When 2 numbers are together that means multiplication
x=6
6x4=24
Answer: he must pay $650 interest
Step-by-step explanation:
2000 x 0.650 x 1/2 = 650
Answer:
6x+8
Step-by-step explanation:
2(x+4)+4x
2x+8+4x
6x+8
Answer:
4 months
Step-by-step explanation:
(2000 *6)/100 = 120
120x = 480
X = 480/120
X = 4 months
