2 years ago

A dogs weighs 7 pounds and triples each year for two years. How much does the dog weigh?

Mathematics

2 answers:

Tanya [424]2 years ago

5 0

Year 1: 7lbs x 3years= 21lbs
Year 2: 21lbs x 3years = 63lbs

Viktor [21]2 years ago

4 0

7 pounds times 3 is 21 for the first year, and 21 times 3 is 63 for the second year. The answer is 63 pounds.

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Which ordered pairs are in the solution set of the system of linear inequalities? y > -1/2x y <1/2 x + 1

Nesterboy [21]

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$y=-\dfrac{1}{2}x\\\\for\ x=0\to y=-\dfrac{1}{2}\cdot0=0\to(0;\ 0)\\\\for\ x=2\to y=-\dfrac{1}{2}\cdot2=-1\to(2;\ -1)\\\\\\y=\dfrac{1}{2}x+1\\\\for\ x=-2\to y=\dfrac{1}{2}\cdot(-2)+1=-1+1=0\to(-2;\ 0)\\\\for\ x=0\to y=\dfrac{1}{2}\cdot0+1=1\to(0;\ 1)$