What is the value of the expression 30n when n=2
2 answers:
Hey there!
Since it's 30n, 30 is the coefficient and it's being multiplied by n.
We plug in n.
30(2) =
60
Hope this helps!
60 cuz 30*2=60 when there is a letter next to a number you always multiply
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![\bf \textit{equation of a circle}\\\\ (x-{{ h}})^2+(y-{{ k}})^2={{ r}}^2 ~~ \begin{array}{lllll} center~(&\quad {{ h}},&\quad {{ k}}\quad )\qquad radius=&{{ r}}\\ &-\sqrt{5}&-\sqrt{5}&\sqrt{5} \end{array} \\\\\\\ [x-(-\sqrt{5})]^2+[y-(-\sqrt{5})]^2=(\sqrt{5})^2 \\\\\\ (x+\sqrt{5})^2+(y+\sqrt{5})^2=5](https://tex.z-dn.net/?f=%5Cbf%20%5Ctextit%7Bequation%20of%20a%20circle%7D%5C%5C%5C%5C%20%0A%28x-%7B%7B%20h%7D%7D%29%5E2%2B%28y-%7B%7B%20k%7D%7D%29%5E2%3D%7B%7B%20r%7D%7D%5E2%0A~~%20%0A%5Cbegin%7Barray%7D%7Blllll%7D%0Acenter~%28%26%5Cquad%20%7B%7B%20h%7D%7D%2C%26%5Cquad%20%7B%7B%20k%7D%7D%5Cquad%20%29%5Cqquad%20%0Aradius%3D%26%7B%7B%20r%7D%7D%5C%5C%0A%26-%5Csqrt%7B5%7D%26-%5Csqrt%7B5%7D%26%5Csqrt%7B5%7D%0A%5Cend%7Barray%7D%0A%5C%5C%5C%5C%5C%5C%5C%0A%5Bx-%28-%5Csqrt%7B5%7D%29%5D%5E2%2B%5By-%28-%5Csqrt%7B5%7D%29%5D%5E2%3D%28%5Csqrt%7B5%7D%29%5E2%0A%5C%5C%5C%5C%5C%5C%0A%28x%2B%5Csqrt%7B5%7D%29%5E2%2B%28y%2B%5Csqrt%7B5%7D%29%5E2%3D5)
So to get to the house it will take 4*1.5 = 6hours
and same for the return if using the same route
10-3equals 7 Kevin will have $7.00 left over after he pays the debt of $3.00 he owes.
