An event will definitely either happen or not happen.

The total probability of it (happening or not happening) is 100%.

So if the probability of it happening is 87%, then the probability of it
NOT happening is
(100% - 87%) = 13% .

7 0

3 years ago

PLEASE HELP!!!!!!!!

11Alexandr11 [23.1K]

Answer:

The answers would be:
7) y=-0.5x+2
8) y=-0.5x+2
9) y=0.6x-2
10) y=6x-4

Step-by-step explanation:

7 0

2 years ago

If Logan's family can drive 23 1/8 miles on 1 gallon of gas,how far can they drive on 17 gallons

guapka [62]

$\bf \begin{array}{ccll} miles&\stackrel{gas}{gallons}\\ \cline{1-2}\\ 23\frac{1}{8}&1\\\\ x&17 \end{array}\implies \cfrac{23\frac{1}{8}}{x}=\cfrac{1}{17}\implies \cfrac{\frac{23\cdot 8+1}{8}}{x}=\cfrac{1}{17}\implies \cfrac{\frac{185}{8}}{x}=\cfrac{1}{17} \\\\\\ \cfrac{\frac{185}{8}}{\frac{x}{1}}=\cfrac{1}{17}\implies \cfrac{185}{8}\cdot \cfrac{1}{x}=\cfrac{1}{17}\implies \cfrac{185}{8x}=\cfrac{1}{17} \\\\\\ 3145=8x\implies \cfrac{3145}{8}=x\implies 393\frac{1}{8}=x$

4 0

3 years ago