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3 years ago

81 is what percent of 90?

Mathematics

2 answers:

Pie3 years ago

5 0

Answer:

72.9

Step-by-step explanation:

hope it helps you out

please mark brainiest

Fudgin [204]3 years ago

3 0

Answer:

Step-by-step explanation:

Follow the below steps to calculate what percent is 81 out of 90 or how to write 81/90 as a percentage.

Step 1: Percentage Formula = Number1/Number2 x 100

Step 2: plugin the 81 and 90 to the percentage formula and we get 81/90 x 100 = 90%

hope this helps!

(can u mark brainliest)

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Solve the equation -3(y-5)=24

ioda

-3(y-5) = 24...distribute through the parenthesis
-3y + 15 = 24....subtract 15 from both sides
-3y = 24 - 15
-3y = 9...divide both sides by -3
y = 9/-3
y = -3

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4 years ago

Please help i don’t understand

SashulF [63]

Answer:

Use inverse cos to solve for x.

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3 years ago

Twelve jurors are randomly selected from a population of 4 million residents. Of these 4 million residents, it is known that 46

vekshin1

Answer: a) 0.17, b) 0.0363

Step-by-step explanation:

Since we have given that

Number of jurors selected = 12

Number of minorities of jurors = 2

(a) What proportion of the jury described is from a minority race? 

$\dfrac{2}{12}=\dfrac{1}{6}=0.166666\approx0.17$

(b) If 12 jurors are randomly selected from a population where 46% are minorities, what is the probability that 2 or fewer jurors will be minorities?

Let X be the number of jurors who are minorities.

Probability of getting minorities = 0.46

Probability of getting no minorities = 1-0.46 =0.54

$P(X\leq 2)=^{12}C_0(0.54)^{12}+^{12}C_1(0.46)(0.54)^{11}+^{12}C_2(0.46)^2(0.54)^{10}\\\\P(X\leq 2)=0.0363$

(c) What might the lawyer of a defendant from this minority race argue?

Since the number of minorities juror are high among the population.

Hence, a) 0.17, b) 0.0363

7 0

3 years ago

A white tailed deer can sprint at speeds up to 30 miles per hour. American bison can run at speeds up to 3,520 feet per minute.

bogdanovich [222]

Answer:

the Bision is 10 miles / hour faster if he could keep it up

Step-by-step explanation:

There are 60 minutes in an hour.

Therefore the bison can run [3520 feet / min] * [60 min ] =211288 feet in an hour.

Now you have to convert 212200 to miles. Do this by dividing by 5280

212200/5280 = 40 miles.

Kind of hard to believe isn't it. 40 miles is a long way when you are running it.

The bison is faster by 10 miles / hour.

This can be done all in 1 step if you know how to do dimensional analysis

3520 feet / minute * [ 60 min/ hour ] * [ 1 mile / 5280 feet] = 40 miles

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3 years ago

Create an equation that describes the greatest horizontal length, H, in terms of greatest vertical length v

Sedbober [7]

The question illustrates a linear equation, and the equation that represents the greatest horizontal height is H = 2V + 3

<h3>How to determine the equation?</h3>

From the complete question, we have the following highlights:

The greatest horizontal height is three more than twice the greatest vertical length.

This means that:

H = 2 * V + 3

Evaluate the product

H = 2V + 3

Hence, the equation that represents the greatest horizontal height is H = 2V + 3

81 is what percent of 90?​

81 is what percent of 90?