Answer:
$3.63
Step-by-step explanation:
A 10-minute call to France cost $3.19.
![(x_1,y_1)=(10,3.19)](https://tex.z-dn.net/?f=%28x_1%2Cy_1%29%3D%2810%2C3.19%29)
A 15-minute call to France costs $4.29.
![(x_2,y_2)=(15,4.29)](https://tex.z-dn.net/?f=%28x_2%2Cy_2%29%3D%2815%2C4.29%29)
Now we will use two point slope form
![y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)](https://tex.z-dn.net/?f=y-y_1%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%28x-x_1%29)
Substitute the values :
![y-3.19=\frac{4.29-3.19}{15-10}(x-10)](https://tex.z-dn.net/?f=y-3.19%3D%5Cfrac%7B4.29-3.19%7D%7B15-10%7D%28x-10%29)
![y-3.19=0.22(x-10)](https://tex.z-dn.net/?f=y-3.19%3D0.22%28x-10%29)
![y-3.19=0.22x-2.2](https://tex.z-dn.net/?f=y-3.19%3D0.22x-2.2)
![y=0.22x-2.2+3.19](https://tex.z-dn.net/?f=y%3D0.22x-2.2%2B3.19)
![y=0.22x+0.99](https://tex.z-dn.net/?f=y%3D0.22x%2B0.99)
y is the cost and x is the number of minutes
Now we are suppose to find cost of a 12-minute call to France
Substitute x = 12
![y=0.22(12)+0.99](https://tex.z-dn.net/?f=y%3D0.22%2812%29%2B0.99)
![y=3.63](https://tex.z-dn.net/?f=y%3D3.63)
Hence the cost of a 12-minute call to France is $3.63
Answer:
6
Step-by-step explanation:
![2( {3}^{6} \times {3}^{ - 5} ) \\ {3}^{6 - 5} = {3}^{1} = 3 \\ 2 \times 3 = 6](https://tex.z-dn.net/?f=2%28%20%7B3%7D%5E%7B6%7D%20%20%5Ctimes%20%20%7B3%7D%5E%7B%20-%205%7D%20%29%20%5C%5C%20%20%7B3%7D%5E%7B6%20-%205%7D%20%20%3D%20%20%7B3%7D%5E%7B1%7D%20%20%3D%203%20%5C%5C%202%20%5Ctimes%203%20%3D%206)
![\boxed{\bold{Answer:{\green{\boxed{\bold{6}}}}}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cbold%7BAnswer%3A%7B%5Cgreen%7B%5Cboxed%7B%5Cbold%7B6%7D%7D%7D%7D%7D%7D)
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★ . ꜝꜞ ᳝ ࣪ hope that helped! ʬʬ
Answer:
48%
Step-by-step explanation:
96 out of the 200 species of birds have been seen nesting. To make it easier, let's make it out of a hundred. Just divide both numbers by 2, this will result in the ratio being 48 out of 100. Now, we have our percentage, 48%.
Answer:
I believe it would be (7, 4). That is the ordered pair of the highest point. Hope this helps!