Answer:
2(x-y) and 2x-2y are equivalent.
Step-by-step explanation:
To figure out 2(x-y) and 2x-2y, you can apply the distributive property on
to get:
Or we can factor
to get:
This implies that, the two expressions are equivalent.
In a bar graph, a 12 cm bar represents 96 kg. What will be the weight represented by a 5 cm bar? (A) 5 kg (B) 13 kg (C) 40 kg (D
1 answer:
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Answer:
Both candles will have the same height after 4 hours.
Step-by-step explanation:
The equation for the amount of candle remaining can be given by the following equations:
In which Q(t) is the amount after t hours, Q(0) is the initial amount and a is how much it decreases, in inches, per hour.
Red candle:
8 inches tall and burns at a rate of 7 divided by 10 inch per hour. This means that . So
Blue candle:
6 inches tall and burns at a rate of 1 divided by 5 inch per hour. This means that . So
After how many hours will both candles be the same height ?
This is t when
Multiplying by (-1)
Both candles will have the same height after 4 hours.