All categories

4 years ago

$81 with a 5.5% sales tax

Mathematics

2 answers:

Nadya [2.5K]4 years ago

8 0

5.5x81/100= 4.455-> 4.456
81+4.456= 85.46

kkurt [141]4 years ago

6 0

Before Tax Price: $81.00
Sale Tax: 5.50% or $4.46
Final Price: <span>$85.46</span>

You might be interested in

There is 120 ft of fencing available for a project. What would be the dimensions for the garden if the builders attached one sid

Pavlova-9 [17]

30 x 60

Step-by-step explanation:

the length of the perimeter would be 180, subtract 60ft for the fencing replaced by the wall and you meet the maximum 120ft

30X60 gives you the largest area with 1800ft^2

5 0

3 years ago

What is the area of parallelogram ABCD.

noname [10]

Area = base * height. This is because you can move the triangle on the left to the right side, forming a rectangle, which has an area of base * height.

For this shape, the area is 2.8m * 6.2m = 17.36 m^2. I don't see that answer listed, nor are the answers in m^2, which is strange.

7 0

3 years ago

Let X equal the number of typos on a printed page with a mean of 4 typos per page.

timama [110]

Answer:

a) There is a 98.17% probability that a randomly selected page has at least one typo on it.

b) There is a 9.16% probability that a randomly selected page has at most one typo on it.

Step-by-step explanation:

Since we only have the mean, we can solve this problem by a Poisson distribution.

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

In this problem, we have that $\mu = 4$

(a) What is the probability that a randomly selected page has at least one typo on it?

Thats is $P(X \geq 1)$ . Either a number is greater or equal than 1, or it is lesser. The sum of the probabilities must be decimal 1. So:

$P(X < 1) + P(X \geq 1) = 1$

$P(X \geq 1) = 1 - P(X < 1)$

In which

$P(X < 1) = P(X = 0)$ .

$P(X = 0) = \frac{e^{-4}*4^{0}}{(0)!} = 0.0183$

$P(X \geq 1) = 1 - P(X < 1) = 1 - 0.0183 = 0.9817$

There is a 98.17% probability that a randomly selected page has at least one typo on it.

(b) What is the probability that a randomly selected page has at most one typo on it?

This is $P = P(X = 0) + P(X = 1)$ . So:

$P(X = 0) = \frac{e^{-4}*4^{0}}{(0)!} = 0.0183$

$P(X = 1) = \frac{e^{-4}*4^{1}}{(1)!} = 0.0733$

$P = P(X = 0) + P(X = 1) = 0.0183 + 0.0733 = 0.0916$

There is a 9.16% probability that a randomly selected page has at most one typo on it.

3 0

3 years ago

The cost of 24 bottles of water is $6. Which expression shows how to find the cost of 10

IRINA_888 [86]

Answer:

10 water bottles = $2.50

Step-by-step explanation:

Basically just algebra, just find out the cost for one water bottle, then find out the cost for ten. If 24 water bottles is 6 dollars, then they got four bottles of water for one dollar, meaning a bottle of water is 25 cents, or $0.25. Ten water bottles would be two dollars and fifty cents.

7 0

3 years ago

If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to (ToS) (x)

Gnoma [55]

In order to find the expression that is equivalent to (t*s)(x), use the following steps:
s(x) = x - 7t(x) = 4x^2 - x + 3
(t*s)(x) = t(s(x)) = t(x - 7) = 4(x - 7)^2 - (x - 7) + 3 = 4(x - 7)^2 - x + 7 + 3
The correct result would be 4(x – 7)2 – (x – 7) + 3.

5 0

3 years ago

Read 2 more answers