The first step for absolute value equations is to isolate the expression contained within the absolute value bars:
3|2x+4|-1 = 11
3|2x+4| = 12
|2x+4| = 4
so |2x+4| is 4 units away from 0 on a number line, but we don't know in which direction -- negative or positive? you'll have two answers.
2x+4 = 4
AND
2x+4 = -4
solve both of those two step equations and you'll get
x = 0
AND
x = -4
so 0 and -4 are your solutions.
Answer:
53.33% probability that one woman and one man will be chosen to be on the committee
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The order in which the members are chosen is not important, so we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
![C_{n,x} = \frac{n!}{x!(n-x)!}](https://tex.z-dn.net/?f=C_%7Bn%2Cx%7D%20%3D%20%5Cfrac%7Bn%21%7D%7Bx%21%28n-x%29%21%7D)
What is the probability that one woman and one man will be chosen to be on the committee?
Desired outcomes:
One woman, from a set of 2, and one man, from a set of 4. So
![D = C_{2,1}*C_{4,1} = \frac{2!}{1!1!}*\frac{4!}{1!3!} = 8](https://tex.z-dn.net/?f=D%20%3D%20C_%7B2%2C1%7D%2AC_%7B4%2C1%7D%20%3D%20%5Cfrac%7B2%21%7D%7B1%211%21%7D%2A%5Cfrac%7B4%21%7D%7B1%213%21%7D%20%3D%208)
Total outcomes:
Two members from a set of 2 + 4 = 6. So
![T = C_{6,2} = \frac{6!}{2!4!} = 15](https://tex.z-dn.net/?f=T%20%3D%20C_%7B6%2C2%7D%20%3D%20%5Cfrac%7B6%21%7D%7B2%214%21%7D%20%3D%2015)
Probability:
![p = \frac{D}{T} = \frac{8}{15} = 0.5333](https://tex.z-dn.net/?f=p%20%3D%20%5Cfrac%7BD%7D%7BT%7D%20%3D%20%5Cfrac%7B8%7D%7B15%7D%20%3D%200.5333)
53.33% probability that one woman and one man will be chosen to be on the committee
Answer:
Step-by-step explanation:
we know that
using proportion
![\frac{1}{44.9}\frac{serving\ of\ rice}{grams\ of\ carbohydrates} =\frac{2.5}{x}\frac{serving\ of\ rice}{grams\ of\ carbohydrates} \\ \\x=44.9*2.5\\ \\x=112.25\ grams\ of\ carbohydrates](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B44.9%7D%5Cfrac%7Bserving%5C%20of%5C%20rice%7D%7Bgrams%5C%20of%5C%20carbohydrates%7D%20%3D%5Cfrac%7B2.5%7D%7Bx%7D%5Cfrac%7Bserving%5C%20of%5C%20rice%7D%7Bgrams%5C%20of%5C%20carbohydrates%7D%20%5C%5C%20%5C%5Cx%3D44.9%2A2.5%5C%5C%20%5C%5Cx%3D112.25%5C%20grams%5C%20of%5C%20carbohydrates)