Answer:

Step-by-step explanation:

Convertir elemento a fracción: 1 = 1/1

Mínimo común múltiplo de 1,5,3 = 15
Ajustar fracciones según el mcm

Dado que los denominadores son iguales, combine las fracciones:

Sumar Restar los números: -15 + 21 + 10 = 16

Answer: the first option
Step-by-step explanation:
A reflection means that the object is flipped.
Answer:
The first piece is 5 inches long, while the second is 15 inches and the third one is 20 inches.
Step-by-step explanation:
To determine the length of the 3 pieces, knowing that the total of the board is 40 inches, and that the second measures 3 times more than the first and the third measures 4 times more than the first, the following equation must be performed:
X + 3X + 4X = 40
8X = 40
X = 40/8
X = 5
Therefore, the first piece is 5 inches long, while the second is 15 inches and the third 20 inches.
Answer:
25%
Step-by-step explanation:
25/100 = 25%
A) 25x+15y=650
25x+15(40)=650
Or it could be 25x=650 and 15y=650
B) No because she makes $15 for every necklace which she only has 40 necklaces 15x40=600