Answer:
5! = 120
Step-by-step explanation:
using the definition of factorial !
n! = n(n - 1)(n - 2) .... 3 × 2 × 1 , then
5! = 5 × 4 × 3 × 2 × 1 = 20 × 12 × 1 = 120
4 nickles
Explanation:
80=N+D
7.80=0.05N + 0.1D
D=80-N
7.80=0.05N + 0.1(80-N)
7.80=0.05N + 8 - 0.1N
0.1N + 7.80 = 8 + 0.05N
0.05N = 8-7.80
0.05N = 0.2
N= 4
Answer:
49
Step-by-step explanation:
ANSWER:
The triplets will be 7 years each. 21, divided by 7.
8 ÷ (2/3)
Divide 2/3 first, because it's in the parenthesis.
Divide 8 by the product of 2/3 = 12.