Answer: 10 inches
Step-by-step explanation:
We know that each single Denalia shell is 2 inches. So let's calculate how many inches a 25 shell necklace would be
25(number of shells)×2(inches per 1 shell) = 50in
Next let's find the second necklace with 20 shells
20(number of shells) × 2(inches per 1 shell) = 40in
Finally we take the difference between the two
50in - 40in = 10 inches
Thus, the difference between a 25 shell necklace and a 20 shell necklace is 10 inches.
Answer: 11 units and 23 units
Step-by-step explanation:
Answer:
x = 15
Step-by-step explanation:
1. Combine like terms
2x - 3x = -x
2. Rewrite original equation
-x + 4 = -11
3. Subtract four from both sides of the equation.
-x + 4 = -11
- 4 - 4
-x = - 15
4. Divide by -1 on both sides to get rid of the negative signs:
x = 15
C).
Not sure ..........;)