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3 years ago

If the perimeter is 84cm and the length is 32 ft what is the width

Mathematics

2 answers:

Luden [163]3 years ago

7 0

If u multiple 84 and 32 it equals 2,688

IgorLugansk [536]3 years ago

7 0

P=2L+2w

P=2(32)+2w

P=64+2w

P=84

84 = 64 + 2w
-64 -64

20=2w

W=10

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Answer:

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Step-by-step explanation:

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3 years ago

The doghouse shown has a floor but no windows. Find the total surface area of the doghouse including the door.

Ivahew [28]

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3 years ago

Read 2 more answers

The price of a sweater is $5 less than twice the price of a shirt. if four sweaters and three shirts cost $200, find the price o

Mandarinka [93]

Sw+5=2sh
4sw+3sh=200 
4(2sh-5)+3sh=200

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3 years ago

The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th

marusya05 [52]

Answer:

The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is $\pi=0.29$

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

$\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224$

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

$z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25$

8 0

3 years ago

Anthony has a combination of 104 nickels and quarters totaling $22. Which system of linear equations can be used to find the num

Butoxors [25]

Answer:

The answer is c and we'll use c to get the actual answers.

A) n + q = 104

B) .05n + .25q = 22 we'll multiply B) by -4

B) -.2n -1q = -88 then we add A)

A) n + q = 104 which equals

.8n = 16

n = 20 nickels

q = 84 quarters

20 nickels = $1

84 quarters = $21

Successful!!!

Step-by-step explanation:

5 0

3 years ago