This is simply a question about ratios. This ratio means that for every 1 cm on the map, there are 12 km in actuality. You can set this problem up in fractions:
1 cm 12 cm
-------- = ----------
12 km x
To solve for x, we cross-multiply, for the moment ignoring units. Remember, your answer will be in km.
1*x=12*12
x=144
If x=144, then for 12 cm, there are 144 km.
Answer:
![\dfrac{x}{4}-\dfrac{7}{12}](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%7D%7B4%7D-%5Cdfrac%7B7%7D%7B12%7D)
Step-by-step explanation:
The fraction is the equivalent of ...
![\dfrac{1}{12}{(3x-7)](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B12%7D%7B%283x-7%29)
and the distributive property applies.
![=\dfrac{1}{12}(3x)-\dfrac{1}{12}(7)\\\\=\dfrac{3\cdot x}{3\cdot 4}-\dfrac{7}{12}\\\\=\dfrac{x}{4}-\dfrac{7}{12}](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B1%7D%7B12%7D%283x%29-%5Cdfrac%7B1%7D%7B12%7D%287%29%5C%5C%5C%5C%3D%5Cdfrac%7B3%5Ccdot%20x%7D%7B3%5Ccdot%204%7D-%5Cdfrac%7B7%7D%7B12%7D%5C%5C%5C%5C%3D%5Cdfrac%7Bx%7D%7B4%7D-%5Cdfrac%7B7%7D%7B12%7D)
Answer:
so look
Step-by-step explanation:
6x=7+8
2 Simplify 7+87+8 to 1515.
6x=156x=15
3 Divide both sides by 66.
x=\frac{15}{6}x=
6
15
4 Simplify \frac{15}{6}
6
15
to \frac{5}{2}
2
5
.
x=\frac{5}{2}x=
2
5
Done
Decimal Form: 2.5
Answer:
D. 100°
Step-by-step explanation:
A straight line is 180°. Add 50° and 30° (which is 80°) and subtract the total from 180°.
50 + 30 = 80
180 - 80 = 100
the number is 6 so we round up to 9.7 s
I hope that help .