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Alex_Xolod [135]

3 years ago

7

every tenth visitor to an ice cream shop gets free sprinkler. every twelvth visitor gets free hot fudge. which visitor each day

will be the first to get both free sprinkles and free hot fudge?

2 answers:

Vadim26 [7]3 years ago

7 0

The 60th visitor is lcm so ya 6x10 and 12x5

DENIUS [597]3 years ago

4 0

person number 60

10 20 30 40 50<u> 60</u>

12 14 36 48<u> 60</u>

It id in both of their times tables.<u />

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Pls help me with this

Neporo4naja [7]

Answer:

2x - 2y = 14

x - y = 2

1.) x = 2+ y

2.) 2(2+ y) - 2y = 14

3.) 4 + 4y - 2y = 14

4.) 4y - 2y = 14 - 4

5.) 2y = 10

6.) 2y/2 = 10/2

7.) y = 5

x - y = 2

8.) x - 5 = 2

9.) x = 2 + 5

10.) x = 7

Therefore, x = 7 and y = 5

Step-by-step explanation:

1. First make one of the variables in any equation the subject of the formula

2. Then substitute the variables equating to the subject of the formula

3. Group the like terms,then solve the equation.

4. Replace the value you will find in the first equation into the other equation.

5. Repeat with the same

5 0

2 years ago

The weekly salaries of sociologists in the United States are normally distributed and have a known population standard deviation

Lostsunrise [7]

Answer:

$ME =z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

The confidence level is 0.98 and the significance is $\alpha=1-0.98 =0.02$ and $\alpha/2 =0.01$ and the critical value using the table is:

$z_{\alpha/2}= 2.326$

And replacing we got:

$ME=2.326 \frac{425}{\sqrt{22}}= 210.760\ approx 210.76$

Step-by-step explanation:

For this case we have the following info given:

$\sigma = 425$ represent the population deviation

$n =22$ the sample size

$\bar X =1520$ represent the sample mean

We want to find the margin of error for the confidence interval for the population mean and we know that is given by:

$ME =z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

The confidence level is 0.98 and the significance is $\alpha=1-0.98 =0.02$ and $\alpha/2 =0.01$ and the critical value using the table is:

$z_{\alpha/2}= 2.326$

And replacing we got:

$ME=2.326 \frac{425}{\sqrt{22}}= 210.760\ approx 210.76$

3 0

2 years ago

90units needed 8 units per case what's the #of cases & # of additional units

Kobotan [32]

Answer:

# of cases: 11

Additional units: 2

Step-by-step explanation:

If each case can hold 8 units, and we want to find the total # number of cases, we have to divide the # of units (8) for one case by the total # units (90).

As you can see, after dividing by 8, we have a total of 11 cases and a remainder of 2 units. The remainder will be the # of additional units because we cannot have another case filled with 8 units.

3 0

2 years ago

it takes joey 1/16 of an hour to write one thank you card.How many thank you cards can he make in 3/4 of an hour?

devlian [24]

I hope this helps you

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3 years ago

Answer pls thanks kfdsdatttdfyui8u90g

diamong [38]

Answer:

Step-by-step explanation:

960 75%

6 0

2 years ago