the prices of backpacks are $22, 16, 39, 35, 19, 34, 20 and $26. how do i find the mean absolute deviation of the prices?

Answers

Answer 1

Answer: $mean:\overline{X}=(22+16+39+35+19+34+20+26)/(8)=(211)/(8)\n\nabsolute\ deviation :\n\nD=(|22-(211)/(8)|+|16-(211)/(8)|+|39-(211)/(8)|+|35-(211)/(8)|+|19-(211)/(8)|+|34-(211)/(8)|+|20-(211)/(8)|+|26-(211)/(8)|)/(8)$

$=((35)/(8)+(83)/(8)+(101)/(8)+(69)/(8)+(59)/(8)+(61)/(8)+(51)/(8)+(3)/(8))/(8)=((462)/(8))/(8)=((231)/(4))/(8)=(231)/(4\cdot8)=(231)/(32)=7.21875$

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[(17-9)x(3x2)]÷2 find the value of the following expression

Answers

Solve the parenthesis firt.
17-9 = 8
3*2 = 6 now multiply 6 by 8 that equals 48
now divide 48 by 2
48÷2= 24

Ur numbers are

[(17-9)x(3x2)]÷2

8x6÷2

48÷2

=24

Resuelve con calculadora y escribe la regla utilizada 36×100=
8×1000=
5.6×10=
5.6×100=
5.6×1000=
2.12×100=

Answers

$36* 100 = 3600\n\n8 * 1000 = 8000\n\n5.6 * 10 = 56\n\n5.6 * 100 = 560\n\n5.6 * 1000 = 5600\n\n2.12 * 100 = 212$

When you multiply by 10, 100, or 1000, you must move the decimal place over by how many zeroes there are. Once there is no more decimals, you add 0's to the end of the number until you are done.

For example, 5.6 x 1000

1000 has 3 zeroes.

That means we need to move the decimal spot 3 times.

5.6 x 1000 = 56 x 100

We got rid of the decimal but we still have 2 zeroes left. So now we just add 2 zeroes at the end of the number.

5.6 x 1000 = 56 x 100 = 5600

I hope that helps! :)

5 equals blank divided by 7