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2 years ago

15

Lauren and her friend went out to eat at Cheddar's . The food total was $61.32. They then left a 7% tip. What was the price of t

he tip?

1 answer:

kati45 [8]2 years ago

7 0

Answer:

$4.29

Step-by-step explanation:

7% of $61.32 comes out to 4.2924, for the monetary conversion, just round it to the hundredths place and it comes out to $4.29

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A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to be $28.75 , with a standard

bulgar [2K]

Answer:

Following are the solution to the given choices:

Step-by-step explanation:

Using chebyshev's theorem :

$\to P(|(x-\mu)|\leq k \sigma)\geq 1- \frac{1}{k^2}\\\\here \\ \to \mu=28.75\\\\ \to \sigma=4.44$

In point a)

$\to |(x-\mu)|= |20.17-28.75|=8.58 and \sigma=4.44 \\\\so, \\k= \frac{ |(x-\mu)| }{\sigma}$

$= \frac{8.58}{4.44} \\\\ =1.9 \\\\ =2$

$value= (1- \frac{1}{k^2}) \times 100 \% =75\%$

In point b)

$\to (1- \frac{1}{k^2}) \times 100 \% =84\% \\\\\to (1- \frac{1}{k^2})=0.84 \\\\\to \frac{1}{k^2} =0.16 \\\\\to \frac{1}{k}=0.4\\\\ \to k=2.5 \\\\\to |(x-\mu)| \leq k \sigma \\\\= |(x-\mu)|\leq 2.5 \times 4.44 \\\\ = |(x-\mu)|\leq 1.11 \\\\ = (28.75\pm 11.1) \\\\\to \text{fares lies between}(17.65,39.85)$

In point c)

$\to 99.7 \% \\ lie \ between=28.75 \pm z(.03)\times \sigma \\\\ =28.75\pm 2.97 \times 4.44\\\\=(28.75\pm 13.1)\\\\=(15.65,41.85)\\$

In point d)

using standard normal variate

$x=20.17\\\\ z=-2 \\\\x=37.13\\\\ z=2\\\\\to P(20.17$

8 0

3 years ago

In ten years, the population of Detroit fell from 950,000 to about 712,500. Find the percent change.

sergij07 [2.7K]

Answer:

25% decrease

Step-by-step explanation:

Percent change can be found by doing difference/original

(950,000 - 712,500) / 950,000

= 0.25

There was a 25% decrease in the population

5 0

3 years ago

What is the length of the hypotenuse of a right triangle if each of the two legs is 7 units? (1 point)

NNADVOKAT [17]

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8 0

3 years ago

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The perimeter of a rectangular field is 354 yards. If the width of the field is 82 yards, what is its length

GenaCL600 [577]

Length is 95 yards.

The perimeter of a rectangle is the sum of four sides. The four sides are either its length or width.

A rectangle has four sides where its angles are all right angles and its opposite sides are congruent or of equal size.

Perimeter = 2length + 2width ==> P = 2L + 2W

354 = 2L + 2(82)
354 = 2L + 164
to get the length. we must transfer all like signs.
2L = 354 - 164
2L = 190
2L / 2 = 190 / 2
L = 95 yards.

4 0

3 years ago

Read 2 more answers

Pls explain how u get the answer help pls

Akimi4 [234]

Answer:

x=132°

Step-by-step explanation:

All four angles should add up to 360°

65°+86°+77°+x=360°

x=132°

8 0

3 years ago

Read 2 more answers