Answer:
Explanation:
We know the area of the rectangle is length * width
We also know width = length - 5
Thus area is 
Answer: C
Explanation: look at the attached picture. Hope it makes sense.
Answer:
Tómate un baño. Ponte los zapatos. Tiende tu cama. Sal de tu computadora. aspirar la casa. cepilla tus dientes.
Explanation:
translation - Take a bath. Put your shoes on. Make your bed. Get off your computer. vacuum the house. brush your teeth.
included - 5 sentences/commands, 5 different verbs.
Exactly 80 liters of 20% are needed.
Let quantity of 20% alcohol solution be added : x liters
Here is the work:
> x*20% + 40 * 50% = (x+40) * 30%
> x*0.2 + 40*0.5 = (x+40)*0.3 ..(converting percentages into decimal)
> 0.2x + 20 = 0.3x + 12
> 20-12 = 0.3x - 0.2x (Rearranging similar terms)
> 8 = 0.1 x
Hence x = 8/0.1
Ans 80 Litres
