Answer:
x = 9
y = 9
Step-by-step explanation:
Given :
Let :
Kenyan French roast coffee = x
Cost per x = $8
Sumatran Coffee = y
Cost per y = $10
x + y = 18 - - - - (1)
8x + 10y = 9 * 18 ;
8x + 10y = 162 - - - - (2)
From (1):
x = 18 - y
Put x = 18 - y in (2)
8(18 - y) + 10y = 162
144 - 8y + 10y = 162
2y = 162 - 144
2y = 18
y = 9
x = 18 - y
x = 18 - 9
x = 9
Answer:
Step-by-step explanation:
Answer:
10 units
Step-by-step explanation:
Using the distance formula above,
distance between the 2 points
![= \sqrt{[0 - ( - 8)]^{2} + (7 - 1)^{2} } \\ = \sqrt{(0 + 8)^{2} + 6^{2} } \\ = \sqrt{ {8}^{2} + 36} \\ = \sqrt{64 + 36} \\ = \sqrt{100} \\ = 10 \: units](https://tex.z-dn.net/?f=%20%3D%20%20%5Csqrt%7B%5B0%20-%20%28%20-%20%208%29%5D%5E%7B2%7D%20%2B%20%287%20-%201%29%5E%7B2%7D%20%20%7D%20%20%5C%5C%20%20%3D%20%20%5Csqrt%7B%280%20%2B%208%29%5E%7B2%7D%20%2B%206%5E%7B2%7D%20%20%7D%20%20%5C%5C%20%20%3D%20%20%5Csqrt%7B%20%7B8%7D%5E%7B2%7D%20%20%2B%2036%7D%20%20%5C%5C%20%20%3D%20%20%5Csqrt%7B64%20%2B%2036%7D%20%20%5C%5C%20%20%3D%20%20%5Csqrt%7B100%7D%20%20%5C%5C%20%20%3D%2010%20%5C%3A%20units)
The first and third are correct. They are equal.
The second is incorrect. This is because 1800 meters = 1.8 km (not 18 km). The answer you should have is a "less than sign" because 1.8 km is smaller than 18 km.
To go from meters to kilometers, you move the decimal point 3 spots to the left. This is the same as dividing by 1000.
To go from kilometers to meters, you move the decimal point 3 spots to the right. This is the same as multiplying by 1000.
Answer:
The area of the net is not π • 9^2
:P no explanation for u
