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3 years ago

How do I write 400% as a decimal and as a mixed number or fraction in simplest form?

Mathematics

2 answers:

Mashutka [201]3 years ago

7 0

400%

= 400/100

= 4

As a decimal = 4.00

As a fraction = 4/1

lora16 [44]3 years ago

5 0

The conversion of a number from a percentage form to a decimal form uses the equivalence factor 1/100%. In this case, 400 % * (1/100%) is equal to 4.00. To make this into a mixed fraction, we can use any numbers such that the number is still equal to 4. We can use 4 5/5 or 4 2/2, etc. as a mixed fraction form.

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Suppose that the probability that a person books an airline ticket using an online travel website is 0.72. Consider a sample of

ExtremeBDS [4]

Answer:

0.183

Step-by-step explanation:

This is a question on Binomial Probability

Formula =nCx × p^x × q^n - x

p = 0.72

q = 1 - p

= 1 - 0.72

= 0.28

x = number of successes = 9

n = 10

The probability that at least nine out of ten people used an online travel website when they booked their airline ticket

At least 9 out of 10 means

x ≥ 9 = x = 9 and x = 10

Hence,

P(x ≥ 9) = 10C9 × (0.72^9 × 0.28^10 - 9) + 10C10 × ( 0.72^10 × 0.28^10 - 10)

P(x ≥ 9) = 0.14559635388 + 0.0374390623

= 0.18303541631

≈ 0.183

3 0

3 years ago

A pile of earth removed from an excavation is a cone measuring 6ft high and 30ft across its base. How many trips will it take to

nignag [31]

Answer: 14

Step-by-step explanation:

Given

Excavation cone measures

height $h=6\ ft$

Diameter $d=30\ ft$

Truck can dump $125\ ft^3$ at a time

The volume of a cone is

$V=\dfrac{1}{3}\pi r^2h$

Putting values

$\Rightarrow V=\dfrac{1}{3}\times \pi\times 15^2\times 6\\\Rightarrow V=1413.9\approx 1414\ ft^3$

No of trips(N) required to accumulate this much volume is given by

$\Rightarrow N=\dfrac{1414}{125}=13.3\approx 14$

Therefore, 14 trips are necessary to accumulate a cone of volume $1414\ ft^3$

8 0

3 years ago

What's the answer ?

koban [17]

A=4*<span>π*r^2
A=4*</span><span>π*2^2
=50.3</span>

7 0

3 years ago

The dual bar chart shows the hair colour of boys and girls in a year group.

Natasha2012 [34]

The fraction of the red haired students are boys will be 2 / 5.

<h3>What is a fraction number?</h3>

A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of numerator and denominator.

The dual bar chart shows the hair colour of boys and girls in a year group.

The total number of the boys and girl will be

Total = 6 + 9

Total = 15

Then the fraction of the red haired students are boys will be

⇒ 6 / 15

⇒ 2 / 5

More about the fraction number link is given below.

brainly.com/question/78672

#SPJ1

4 0

2 years ago

PLZ HALP IT LAST QUESTION PLS D: and ty if u do :D

Amiraneli [1.4K]

Answer:

The answer is 28b + 28!

Step-by-step explanation:

You multiply 7 by everything in the parentheses!

3 0

3 years ago

Read 2 more answers