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3 years ago

What decimal can be added to 0.0(54) to get 0.1(54)? (the parenthesis mean repeating)

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

8 0

Will the answer be in decimal or fraction form

son4ous [18]3 years ago

5 0

Add 0.1 to 0.0(54) to get 0.1(54).

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How many positive integers less than 100 have at least one digit that is a 9? (Let T be the set of positive integers less than 1

Ymorist [56]

Answer:

Step-by-step explanation:

Let T be the set of positive integers less than 100 with a 9 in the ten's place.

T = {90, 91, 92, 93, 94, 95, 96, 97, 98, 99}

n(T) = 10

Let O be the set of positive integers less than 100 with a 9 in the one's place.

O = {9, 19, 29, 39, 49, 59, 69, 79, 89, 99}

n(O) = 10

The common element is 99.

$T\cap O={99}$

$n(T\cap O)=1$

The union of both sets is

$n(T\cup O)=n(T)+n(O)+n(T\cap O)$

$n(T\cup O)=10+10-1$

$n(T\cup O)=19$

Therefore, 19 positive integers are less than 100 those have at least one 9.

6 0

4 years ago

On a typical day flights at a local airport arrive at a rate of 10 every 15 minutes at this rate how many flights would you expe

pogonyaev

40 flights, you could use rates in this situation.
15 min*4=60 min=1 hr
10:15 multiply each side by 4
40 flights:60 minutes

4 0

3 years ago

Awnser please please

astraxan [27]

They're all d).

1) 28>24=10+14

2) Either 96/8=? or 8*?=96 describe the problem, ? being the number of chairs (the blank square in the answers). Of the two only the first appears in the options.

3) This question is ambiguous: if someone went both days, we could say the total number of people who went to the Saturday and Sunday games would be less than 3271+5844=9115. But who wrote the question likely wanted you to just do the sum between the two numbers, so of all options d is likely what they want you to choose.

6 0

3 years ago

Please show all work for this 7x + 3 =9x - 7

luda_lava [24]

7x + 3 = 9x - 7

Subtract 7x from each side: + 3 = 2x - 7

Add 7 to each side: 10 = 2x

Divide each side by 2 : 5 = x 

8 0

3 years ago

Which best describes the graphs of the line that passes through (0,2) and (6,4) and the line that passes through (2,1) and (5,7)

son4ous [18]

Answer:

The line which has slope 1/3 is a shallow line.

The line which has slope 2 is a steep line.

Both are increasing.

Step-by-step explanation:

Compare the lines by finding the slope between each pair of points.

Using the slope formula, substitute the points.

$m = \frac{y_2-y_1}{x_2-x_1} = \frac{4-2}{6-0} = \frac{2}{6} = \frac{1}{3}$

$m = \frac{y_2-y_1}{x_2-x_1} = \frac{7-1}{5-2} = \frac{6}{3} = 2$

The line which has slope 1/3 is a shallow line.

The line which has slope 2 is a steep line.

6 0

3 years ago