Ask question

Ask question

All categories

3 years ago

9

janetta is working out a budget. she will save 3 cents for every dollar she earns. she earns 3,173.40 per month. how much will s

he save in one month

1 answer:

lilavasa [31]3 years ago

6 0

Answer:

$95.20

Step-by-step explanation:

3 cents in a dollar is 3% or 0.03.

3% of $3,173.40 =

= 0.03 * $3,173.40

= $95.202

Answer: $95.20

You might be interested in

What is the solution to this equation? <br> 3x-x+8+5x-2=10

Kaylis [27]

3x - x + 8 + 5x - 2 = 10

combine like terms on the left, then add or subtract as asked
(3x - x + 5x) + (8 - 2) = 10

7x + 6 = 10
subtract 6 from both sides

7x = 4
divide both sides by 7

x = 4/7

Hope this helps! :)

7 0

4 years ago

A random sample of 10 parking meters in a beach community showed the following incomes for a day. Assume the incomes are normall

Vlad1618 [11]

Answer: (2.54,6.86)

Step-by-step explanation:

Given : A random sample of 10 parking meters in a beach community showed the following incomes for a day.

We assume the incomes are normally distributed.

Mean income : $\mu=\dfrac{\sum^{10}_{i=1}x_i}{n}=\dfrac{47}{10}=4.7$

Standard deviation : $\sigma=\sqrt{\dfrac{\sum^{10}_{i=1}{(x_i-\mu)^2}}{n}}$

$=\sqrt{\dfrac{(1.1)^2+(0.2)^2+(1.9)^2+(1.6)^2+(2.1)^2+(0.5)^2+(2.05)^2+(0.45)^2+(3.3)^2+(1.7)^2}{10}}$

$=\dfrac{30.265}{10}=3.0265$

The confidence interval for the population mean (for sample size <30) is given by :-

$\mu\ \pm t_{n-1, \alpha/2}\times\dfrac{\sigma}{\sqrt{n}}$

Given significance level : $\alpha=1-0.95=0.05$

Critical value : $t_{n-1,\alpha/2}=t_{9,0.025}=2.262$

We assume that the population is normally distributed.

Now, the 95% confidence interval for the true mean will be :-

$4.7\ \pm\ 2.262\times\dfrac{3.0265}{\sqrt{10}} \\\\\approx4.7\pm2.16=(4.7-2.16\ ,\ 4.7+2.16)=(2.54,\ 6.86)$

Hence, 95% confidence interval for the true mean= (2.54,6.86)

7 0

4 years ago

Can someone help if you can’t tell I suck at math?

Ad libitum [116K]

Answer:

Step-by-step explanation:

1. There will be 9 roses in total.

Probability Orange: 2/9

Probability Yellow: 3/9 = ⅓

Probability Pink: 4/9

2. 4/7 as there are 7 bowls in total and 4 are chocolate.

3. 4/10 = ⅖ (simplified) There are 10 fruits in total and 4 are apples.

4. 5/15 = ⅓ (simplified) There are 15 cars in total and 5 or them are cooper minis.

5. 2/6 = ⅓ (simplified) There are 6 textbooks and 2 of them are math.

6. 13/20 There are 20 drinks and 13 of them are lemonade.

7. There are 10 toys in total.

Probability toy cars: 3/10

Probability dolls: 2/10 = ⅕ (simplified)

Probability balls: 5/10 = ½ (simplified)

8. In total the number of red roses and lilies are 7. There are 10 flowers in total so the number of jasmines are 3. Therefore the probability of getting a jasmine is 3/10

9. 20/50 = ⅖ (simplified) There are 50 papers in total and 20 of them are yellow.

10. 8/18 = 4/9 (simplified) There are 18 buses and 8 of them are air conditioned.

8 0

3 years ago

You want to place a towel bar that is 10 1⁄4 inches long in the center of a door that is 26 1⁄3 inches wide. How far should you

Alenkinab [10]

Center of the door

26 1/3 divided by 2

change to an improper fraction

(3*26+1)/3 =79/3

79/3 divided by 2

copy dot flip

79/3 * 1/2

79/6

change to a mixed number

13 1/6

10 1/4 divided by 2

change to an improper fraction (4*10+1)/2 = 41/4

41/4 divided by 2

copy dot flip

41/4 * 1/2 =41/8

change to a mixed number

5 1/8

the left of the bar should be 5 1/8 from the center

to find how far from the left side to place the bar

13 1/6 - 5 1/8 =

get a common denominator

13 4/24 - 5 3/24= 8 1/24 inches

Answer: place the bar 8 1/24 inches from each edge

4 0

3 years ago

What is 23.5% as a Fraction? Will make brainliest btw :>

Anastasy [175]

Answer:

23 1/2 or 47/2

Step-by-step explanation:

it just is

7 0

3 years ago

Read 2 more answers