Answer:
17, 19 and 21
Step-by-step explanation:
Consecutive odd numbers mean odd numbers that are right next to each other.
Eg: 3, 5, 7
Let x represent the youngest sister. The sister older than her will be 2 years older than her, hence (2 + x). The oldest sister would be 4 years older than the youngest and two years older than the middle sister, hence (4 + x).
The sum of their age = 57.
Hence:
x + (2 + x) + (4 + x) = 57
x + 2 + x + 4 + x = 57
Simplify
3x + 6 = 57
Rearrange
3x = 57 - 6
3x = 51
Divide both sides by 3 to make x on its own (this way we can find the age of the youngest sister).
x = 17 (youngest sister is 17 years old)
x + 2 = 19 (middle sister is 19 years old)
x + 4 = 21 (oldest sister is 21 years old)
Given that a pair of shoes has a price of $62, and it is discounted for 20%, so this would mean that $12.4 is discounted to the original price. So the new price would be $49.6. And now, since there is a 5% tax added, $2.48 is added so the new total price would be $52.08. The answer would be option D. Hope this helps.
The cookies because if they have 100°C, after 30 seconds it loses half it‘s heat and now it only has 50°C.
After the next 30 seconds it loses again half the heat so it‘s 25°C.
You can theoretically continue this forever. It‘s exponential decay.
Answer:
y=-3/2x-3
Step-by-step explanation:
Write in slope-intercept form, y=mx+b
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