Step-by-step explanation:
Turn the ratio into a fraction
2in /25 mi
You want to have miles so you can flip the fraction and mutiply to cancel out the inches
(25mi / 2in) x 5in = (25 mi x 5in) / 2in
Answer: x= 1/54
Explained: easy mental math :p
Answer:
89 green marbles and 46 blue marbles
Step-by-step explanation:
we know that
arithematic sequence will always have common difference
(a)
−5, −7, −10, −14, −19, …
we can see that
![d_1=-7+5=-2](https://tex.z-dn.net/?f=%20d_1%3D-7%2B5%3D-2%20)
![d_2=-10+7=-3](https://tex.z-dn.net/?f=%20d_2%3D-10%2B7%3D-3%20)
they are not equal
so, this is not arithematic sequence
(2)
1.5, −1.5, 1.5, −1.5, …
we can see that
![d_1=-1.5-1.5=-3](https://tex.z-dn.net/?f=%20d_1%3D-1.5-1.5%3D-3%20)
![d_2=1.5+1.5=3](https://tex.z-dn.net/?f=%20d_2%3D1.5%2B1.5%3D3%20)
they are not equal
so, this is not arithematic sequence
(3)
4.1, 5.1, 6.2, 7.2, …
we can see that
![d_1=5.1-4.1=1](https://tex.z-dn.net/?f=%20d_1%3D5.1-4.1%3D1%20)
![d_2=6.2+5.1=1.1](https://tex.z-dn.net/?f=%20d_2%3D6.2%2B5.1%3D1.1%20)
they are not equal
so, this is not arithematic sequence
(4)
−1.5, −1, −0.5, 0, …
we can see that
![d_1=-1+1.5=0.5](https://tex.z-dn.net/?f=%20d_1%3D-1%2B1.5%3D0.5%20)
![d_2=-0.5+1=0.5](https://tex.z-dn.net/?f=%20d_2%3D-0.5%2B1%3D0.5%20)
they are equal
so, this is arithematic sequence