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Firlakuza [10]
3 years ago
5

Your hotel sells three types of rooms: double queen beds for $140/night; king bed for $160/night; junior suite for $220. You sel

l 200, 150, and 20 of each room type, respectively. What is your revenue?
a) $56,400
b) $64,000
c) $78,000
d) $108,000
Mathematics
2 answers:
timama [110]3 years ago
5 0

Answer:it’s A

Step-by-step explanation:b is wrong it just showed me

stiks02 [169]3 years ago
4 0

Answer:

its b

Step-by-step explanation:

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Question 1
ad-work [718]
The answer is 5680 :) thank me later
3 0
2 years ago
Use a normal approximation to find the probability of the indicated number of voters. in this​ case, assume that 114 eligible vo
mafiozo [28]
The random variable X ≈ B(n, p)

Where n is the number of samples. If the value of n is huge, calculating binomial coefficient can be difficult and calculator won't be able to perform the nCr calculation for a big value of n (try ⁶⁰⁰C₁₂₃ on the calculator).

If p, which is the probability, is close to 0.5, the binomial distribution will be fairly symmetric.

We have n = 114 and p = 22% = 0.22

We first need to approximate X by Y ≈ N(np, np(p-1))

np = 114×0.22 = 25.08
np(1-p) = 114×0.22×0.78 = 19.6

Therefore, Y ≈ N(25.08, 19.6)
and since the standard deviation, б = √np(1-p) = √19.6
We then have, Y≈N(25.08, (√19.6)²)

We aim to find the probability of X is exactly 27, mathematically written as P(X=27)

Applying the continuity correction we have P(26.5<Y<27.5) ⇒ This correction, in other words, is applying a range to X that will definitely include the value of X=27

The next step is standardising
We have the mean, μ=25.08 and σ=√19.6

P(26.5<Y<27.5) = P(\frac{26.5-25.08}{ \sqrt{19.6} }<Z<\frac{27.5-25.08}{ \sqrt{19.6} })
P(26.5<Y<27.5) = P(0.32<Z<0.55)
P(26.5<Y<27.5) = P(Z<0.55) - [1 - P(Z<0.32)] ⇒ Read the values for these z-score on the z-table
P(26.5<Y<27.5) = 0.7088 - [1-0.6255]
P(26.5<Y<27.5) = 0.3343


5 0
3 years ago
Ann and Betty shared a sum of money in the ratio 2:3. If Ann received $120,what was the amount of money shared?
Ivenika [448]

Answer:

$420

Step-by-step explanation:

Given data

GIven ratio=  2:3

The total ratio= 2+5= 7

Ann's share= $120

Let us apply the part to all approach

let the total amount be x

so for Ann

2/7= 120/x

cross multiply

2x= 120*7

2x= 840

divide both sides by 2

x= 840/2

x= 420

Hence the amount shared is $420

4 0
2 years ago
If f(x) = 3x - 12, what is f(2)?
sukhopar [10]

Answer:

f(2) = -6

Step-by-step explanation:

f(x) = 3x - 12

Let x =2

f(2) = 3*2 -12

     = 6-12

       = -6

8 0
3 years ago
Please help as soon as possible ​
Inessa [10]

Answer:

75%

Step-by-step explanation:

7 0
3 years ago
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