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3 years ago

I require someone to answer this question for me ASAP please?

Mathematics

2 answers:

DedPeter [7]3 years ago

4 0

Answer:

x < 3

I hope this helps!

elixir [45]3 years ago

3 0

Answer:

x has to be less than 3

Step-by-step explanation:

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Please help for brainliest <br> Solve and graph the compound inequality.<br> 10 < x - 10 < 25

maria [59]

Answer:

Step-by-step explanation:

Just add 10 to both side and we'll have

10 + 10 < x < 25 + 10

20 < x < or equal to 35

8 0

2 years ago

An urn contains r red balls and b blue balls. One ball is selected at random from this urn, its color is recorded and it is retu

nadezda [96]

Answer:

Zero

Step-by-step explanation:

The probability of the ball being red after first selection is = (r) ÷ (r+b)

The probability of the ball being blue after first selection is = (b) ÷ (r+b)

If the ball selected is red, the total number of balls after its returned together with m number of red balls is = r+b+m

The probability of the selection doesn't depend on the second selection, hence condition probability is zero.

However the probability of the second selection depends on the first selection.

5 0

3 years ago

A community hall is in the shape of a cuboid the hall is 40m long 15m high and 3m wide. 10 litre paint covers 25m squared costs

Darina [25.2K]

Answer:

Total cost for tiles and paints is $924.

Step-by-step explanation:

We have been given that a community hall is in the shape of a cuboid. The hall is 40m long 15m high and 3m wide.

The paint will be required for 4 walls and ceiling.

Let us find area of walls and ceiling.

$\text{Area of walls and ceiling}=(2*40*15)+(2*3*15)+(40*3)$

$\text{Area of walls and ceiling}=1200+90+120$

$\text{Area of walls and ceiling}=1410$

Therefore, the area of walls and ceiling is 1410 square meters.

Given: Cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. Therefore,

$\text{ The total painting cost}=10*(\frac{1410}{25})$

$\text{ The total painting cost}=10*56.4=564$

Therefore, the total painting cost is $564.

Tiles will be required for floor. Let us find the area of floor.

$\text{Area of floor} = 40*3\text{ square meters}$

$\text{Area of floor} =120\text{ square meters}$

Given: 1m squared floor tiles costs $3. So,

$\text{Total cost for tiles} = 3*120 = 360$

Therefore, the total tiles cost is $360.

Now let us find combined total cost of tiles and paint.

$\text{Combined total cost}= 564+360 = 924$

Therefore, the combined total cost of tiles and paint is $924.

6 0

2 years ago

Single adults: According to a Pew Research Center analysis of census data, in 2012, 20% of American adults ages 25 and older had

dmitriy555 [2]

Answer:

Option B

Step-by-step explanation:

The number that had never been married will vary in each sample due to the random selection of adults.

This number will vary in each sample to the random selection process but they might or might not be as close as possible to one another after sampling.

7 0

2 years ago

Use x for your variable.<br> The product of four more than a number and nine is fifteen.

nikitadnepr [17]

Answer:2

Step-by-step explanation:

Because 15= x+4+9

7 0

3 years ago