407 over 5 but it also has to be simplified
Answer:
The probability that the next mattress sold is either king or queen-size is P=0.8.
Step-by-step explanation:
We have 3 types of matress: queen size (Q), king size (K) and twin size (T).
We will treat the probability as the proportion (or relative frequency) of sales of each type of matress.
We know that the number of queen-size mattresses sold is one-fourth the number of king and twin-size mattresses combined. This can be expressed as:

We also know that three times as many king-size mattresses are sold as twin-size mattresses. We can express that as:

Finally, we know that the sum of probablities has to be 1, or 100%.

We can solve this by sustitution:

Now we know the probabilities of each of the matress types.
The probability that the next matress sold is either king or queen-size is:

Answer:
825.5 miles of coastline
Step-by-step explanation:
The United States has 12383 miles of coastline.
0.8% of the coastline is in Georgia
Total number of coastline in Georgia will be
0.8% /100% x 12383
0.0667 x 12383
825.5
So there are 825.5 miles of coastline Georgia
Answer:
BROOOO me and you are literally taking the same class on Plato right now and I cant find these answers anywhere literally hardest math class ever.
Step-by-step explanation: