Answer:
Solve the system of equations by graphing, elimination or
subod
Step-by-step explanation:
Divide each cost over the number of bottles
For the 6-pack, we have
3.79 dollars divided by 6 = 3.79/6 = 0.6317 which rounds to 0.63
So we pay $0.63 per bottle or 63 cents per bottle
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For the 9-pack, we have
4.50 dollars divided by 9 = 4.50/9 = 0.50
meaning we pay $0.50 per bottle or 50 cents per bottle
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For the 12-pack, we have
6.89 dollars divided by 12 = 6.89/12 = 0.57416 which rounds to 0.57
So we pay $0.57 per bottle or 57 cents per bottle
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In summary we have
The 6-pack costing 63 cents per bottle
The 9-pack costing 50 cents per bottle
The 12-pack costing 57 cents per bottle
The lowest per bottle cost is 50 cents per bottle, which is for the 9-pack
The 9-pack is the best deal of the three deals.
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Answer:
Step-by-step explanation:
You mean to find side (hypotenuse) x and angles y and z in the right triangle.
We will find hypotenuse with Pythagorin theorem
x∧2 = 10∧2 + 8∧2 = 100 + 64 = 164 => x = √164 = 12.80
x = 12.80
According to the definition of tangens we have
tan y = 8/10 = 0.8 => y = arc tan 0.8 = 38.66° => y = 38° 39' 36''
tan z = 10/8 = 1.25 => z = arc tan 1.25 = 51.34° => z = 51° 20' 24''
God with you!!!