Answer:
The scale factor is 3/2.
Step-by-step explanation:
Let's use the side PQ.
The original length was 8 units.
And the new length is 12 units.
Let the scale factor be k. Therefore:
![8k=12](https://tex.z-dn.net/?f=8k%3D12)
By dividing both sides by 8, we can see that our scale factor from ΔPQR to ΔP'Q'R' is:
![\displaystyle k=\frac{12}{8}=\frac{3}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20k%3D%5Cfrac%7B12%7D%7B8%7D%3D%5Cfrac%7B3%7D%7B2%7D)
Yes, it is B. As the hour increases by 1, the snow on the ground (in cm) increases by 2.
Answer:
start with what you know
Step-by-step explanation:
makes you smarter
Answer:
<h2>x = -2.2</h2>
Step-by-step explanation:
![-2x-14=7x+6\\\\\mathrm{Add\:}14\mathrm{\:to\:both\:sides}\\-2x-14+14=7x+6+14\\\\Simplify\\-2x=7x+20\\\\\mathrm{Subtract\:}7x\mathrm{\:from\:both\:sides}\\-2x-7x=7x+20-7x\\\\Simplify\\-9x=20\\\\\mathrm{Divide\:both\:sides\:by\:}-9\\\frac{-9x}{-9}=\frac{20}{-9}\\\\x=-\frac{20}{9}\\\left(\mathrm{Decimal}:\quad x=-2.22222\dots \right)\\x =-2.2](https://tex.z-dn.net/?f=-2x-14%3D7x%2B6%5C%5C%5C%5C%5Cmathrm%7BAdd%5C%3A%7D14%5Cmathrm%7B%5C%3Ato%5C%3Aboth%5C%3Asides%7D%5C%5C-2x-14%2B14%3D7x%2B6%2B14%5C%5C%5C%5CSimplify%5C%5C-2x%3D7x%2B20%5C%5C%5C%5C%5Cmathrm%7BSubtract%5C%3A%7D7x%5Cmathrm%7B%5C%3Afrom%5C%3Aboth%5C%3Asides%7D%5C%5C-2x-7x%3D7x%2B20-7x%5C%5C%5C%5CSimplify%5C%5C-9x%3D20%5C%5C%5C%5C%5Cmathrm%7BDivide%5C%3Aboth%5C%3Asides%5C%3Aby%5C%3A%7D-9%5C%5C%5Cfrac%7B-9x%7D%7B-9%7D%3D%5Cfrac%7B20%7D%7B-9%7D%5C%5C%5C%5Cx%3D-%5Cfrac%7B20%7D%7B9%7D%5C%5C%5Cleft%28%5Cmathrm%7BDecimal%7D%3A%5Cquad%20x%3D-2.22222%5Cdots%20%5Cright%29%5C%5Cx%20%3D-2.2)