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chubhunter [2.5K]
3 years ago
9

There are 24 boys and 16 girls in a hall, each holding coins in their hand.

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
5 0

Answer:

27

Step-by-step explanation:

total=average ×no.

18×40=720 the no. of coins for all children

12×24=288 no. of coins for boys

720-288=432 for all girls

one girl, mean,divide 432 by 16= 27

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Judy is having a birthday party she invited 7 freinds pver and made 98 cookies for party favours how many did each freind get
Taya2010 [7]

Answer:

Number of cookies each friend gets = 14 cookies

Step-by-step explanation:

Total cookies available for the party = 98

Number of friends invited = 7

how many did each freind get

Number of cookies each friend gets = Total cookies available for the party / Number of friends invited

= 98/7

= 14 cookies

Number of cookies each friend gets = 14 cookies

4 0
3 years ago
Find the slope of the line that passes through the points 2,4,6 and 12
kolezko [41]

Answer:

The slope is 2.

Step-by-step explanation:

If you use the formula that is shown in the picture, you can calculate that 12-4/6-2 is the slope. If you simplify, you'll get that 8/4 is the slope which simplifies to 2.

3 0
3 years ago
You are in the market for a new car. You want to check whether there is a significant difference between the fuel economy of mid
andreev551 [17]

Solution :

It is given that the mean and the standard deviation for a sample of 24 domestic cars is 35.696 MPG and 4.931 MPG respectively and the mean and the standard deviation for a sample of 16 cars is 34.345 MPG and 7.118 respectively.

The 90% confidence level for the men difference between the two samples is  (-2.906, 2.844).

We know that the confidence interval is calculated to determine the mean difference among the two samples with the specified level of confidence.

Therefore, we can say that with 90% confidence, we have the 90% chances that the true mean differences will be within the range of -2.906 MPG to 2.844 MPG.

Thus, it is required 90% confidence interval interpretation.

6 0
3 years ago
Give the (a) center and (b) radius of the circle described by (x-3/2)^2+y^2=1
beks73 [17]
This game was a nice touch but x equals 2-1
4 0
3 years ago
N–2=10n+4/2 what is the value of n need help asap
MakcuM [25]
N - 2 = 10n + 4/2

-2 = 9n + 4/2

-4/4 = 9n

-1 = 9n

-9 = n

N is -9.

If this answer is right please leave a thanks and a rating. :)
4 0
3 years ago
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