To find out the number of necklaces that can be made from 72 and 42 beads, think of the Greatest Common Factor of both numbers
Factors of 72
1 × 72
2 × 36
3 × 24
4 × 18
6 × 12
8 × 9
Factors of 42
1 × 42
2 × 21
3 × 14
6 × 7
The Greatest Common Factor is 6, so there are 6 necklaces can be made with equal number of beads
Answer B. since it has 5x^4
Assuming the equation would be
10 - x/5 = -4
you can solve for x
multiply both sides
50 - x = -20
move 50 to the other side
-x = -20-50
-x=-70
or x=70
Answer:
7.5+8
Step-by-step explanation: