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3 years ago

8

Susan’s cell phone allows her to use 960 minutes per month with no additional charge. She has 188 minutes left for this month. H

ow many minutes has she already used this month?

2 answers:

Naily [24]3 years ago

8 0

Susan has already used 772 minutes this month.

Sedbober [7]3 years ago

5 0

Answer: 772 minutes

Subtract the 960 minutes she had with the 188 minutes she has left. She already used 772 minutes.

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The dividend is a factor of 60. The divisor is a factor of 18. The quotient is a multiple of 3. Use the numbers to find one poss

Diano4ka-milaya [45]

Answer:

A possible solution is 60/2 = 30

Step-by-step explanation:

The given parameters are;

The dividend is a factor of 60

The divisor is a factor of 18

The quotient is a multiple of 3

The dividend is the amount divided

The dividend is the number that is dividing the dividend

The quotient is the result of the division operation

The given numbers to use are 60, 2, 30, and 18

Therefore one possible solution is 60/2 = 30

The dividend = 60 which is a factor of 60 (60 × 1 = 60)

The divisor = 2 which is a factor of 18 (2 × 9 = 18)

The quotient = 30 which is a multiple of 3 (3 × 10 = 30)

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2 years ago

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zepelin [54]

Answer:

19) 35

20) 38

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2 years ago

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From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 21.

zzz [600]

Answer: (20.86, 22.52)

Step-by-step explanation:

Formula to find the confidence interval for population mean :-

$\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}$

, where $\overline{x}$ = sample mean.

z*= critical z-value

n= sample size.

$\sigma$ = Population standard deviation.

By considering the given question , we have

$\overline{x}= 21.69$

$\sigma=3.23$

n= 58

Using z-table, the critical z-value for 95% confidence = z* = 1.96

Then, 95% confidence interval for the amount of time spent on administrative issues will be :

$21.69\pm (1.96)\dfrac{3.23}{\sqrt{58}}$

$=21.69\pm (1.96)\dfrac{1.7}{7.61577}$

$=21.69\pm (1.96)(0.223221)$

$\approx21.69\pm0.83$

$=(21.69-0.83,\ 21.69+0.83)=(20.86,\ 22.52)$

Hence, the 95% confidence interval for the amount of time spent on administrative issues = (20.86, 22.52)

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3 years ago

A skirt costs $20 more than the blouse. the skirt costs $65. what is the price of the blouse. write an equation. then solve the

Aleksandr [31]

$65 - $20
=$45

$65=the skirt

$45=the blouse

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3 years ago

Sines/cosines please help!!!!

AleksandrR [38]

I can help explain it if you PM me.

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3 years ago