Answer:
okay
Step-by-step explanation:
Answer:
$2.25
Step-by-step explanation:
Let c represent the cost of a cup of coffee. Then the total amount paid for 3 cups is ...
3c + 3c·0.08 = 7.29
3.24c = 7.29
c = 7.29/3.24 = 2.25
A cup of coffee costs $2.25.
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<em>Comment on "I will give you 100 pointd"</em>
I don't know what a "pointd" is, but I suggest you not make promises you cannot keep.
They could be: 12:14, 18:21, 24:28
Answer:ok
Step-by-step explanation:
Answer:
10.6301458127
Step-by-step explanation:
Distance between any two points (x1, y1) and (x2,y2) on a coordinate plane is expressed by the formula = ![\sqrt{(x1-x2)^2 + (y1 - y2)^2} \\](https://tex.z-dn.net/?f=%5Csqrt%7B%28x1-x2%29%5E2%20%2B%20%28y1%20-%20y2%29%5E2%7D%20%5C%5C)
given L=(-4,-1) and E =(3, 7
substituting value of coordinates in equation ![\sqrt{(x1-x2)^2 + (y1 - y2)^2} \\](https://tex.z-dn.net/?f=%5Csqrt%7B%28x1-x2%29%5E2%20%2B%20%28y1%20-%20y2%29%5E2%7D%20%5C%5C)
we have
![\sqrt{(-4 - 3)^2 + (-1 - 7)^2} \\=>\sqrt{(-7)^2 + (-8)^2} \\=>\sqrt{49 + 64} \\=>\sqrt{113} \\=>10.6301458127](https://tex.z-dn.net/?f=%5Csqrt%7B%28-4%20-%203%29%5E2%20%2B%20%28-1%20-%207%29%5E2%7D%20%5C%5C%3D%3E%5Csqrt%7B%28-7%29%5E2%20%2B%20%28-8%29%5E2%7D%20%5C%5C%3D%3E%5Csqrt%7B49%20%2B%2064%7D%20%5C%5C%3D%3E%5Csqrt%7B113%7D%20%5C%5C%3D%3E10.6301458127)
Therefore the distance between the points L=(-4,-1) and E =(3, 7) = 10.6301458127