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2 years ago

What is the least whole number “x” for which 2x > 11?

Mathematics

1 answer:

Akimi4 [234]2 years ago

5 0

Answer:

Step-by-step explanation:

Simplifying inequalities is almost the same as simplifying equations. So, in this case, we can divide both sides by two to isolate the variable x:

2x > 11

÷2 ÷2

x > 5.5

Now, we need to find the least whole number of x that makes the expression above true. The next whole number greater than 5.5 is 6, so 6 is the least whole number x for which the inequality holds true.

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Sophie bought a water fountain for her cat. the fountain holds 60 fluid ounces of water. to fill it, sophie uses a jar that hold

Anika [276]

The Answer that I got:

3.75 pints.

7 0

2 years ago

A sample of 100 people is classified by gender (male/female) and by whether they are registered voters. The sample consists of 8

uysha [10]

Answer:

Step-by-step explanation:

Given :

Male Female Total

Registered 60

Non registered 40

Total 20 80

Solution :

N= 100

Formula of expected frequency = $E_{ij}=\frac{T_i \times T_j}{N}$

$E_{ij}$ = expected frequency for the ith row/jth columm.

$T_i$ = total in the ith row

$T_j$ = total in the jth column

N = table grand total.

So, using formula $E_{11}=\frac{T_1 \times T_1}{100}$

$E_{11}=\frac{60 \times 20}{100}$

$E_{11}=12$

$E_{12}=\frac{T_1 \times T_2}{100}$

$E_{12}=\frac{60 \times 80}{100}$

$E_{12}=48$

$E_{21}=\frac{T_2 \times T_1}{100}$

$E_{21}=\frac{40 \times 20}{100}$

$E_{21}=8$

$E_{22}=\frac{T_2 \times T_2}{100}$

$E_{22]=\frac{80 \times 40}{100}$

$E_{22}=32$

Expected frequency table

Male Female Total

Registered 12 48 60

Non registered 8 32 40

Total 20 80

So, the expected frequency for males who are registered voters are $E_{11}=12$

5 0

2 years ago

In a health club, research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard dev

Paha777 [63]

Answer:

0.3114

Option d is right

Step-by-step explanation:

Let X be the time spent on a treadmill in the health club

Given that research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard deviation of 5.4 minutes

Also given that X is normal

the probability that randomly selected individual would spent between 30 and 40 minutes on the treadmill.

$= P(30$

round off to two decimals tog et

the probability that randomly selected individual would spent between 30 and 40 minutes on the treadmill is 0.31

Hence option d is right

3 0

3 years ago

360 words in 1/12 hour. Second try 360 words in 1/15 hour. Was he faster or slower second attempt

xxTIMURxx [149]

Answer:

Second Attempt is faster.

Step-by-step explanation:

He reads 360 words in $\frac{1}{12}$ hour in the first attempt and in the second attempt he reads the same number of words in $\frac{1}{15}$ hour.

Since, $\frac{1}{15} < \frac{1}{12}$ he takes less time in the second time. Less time means the work is done faster.

Therefore, second attempt is faster.

8 0

3 years ago

Level 3<br> Solve: |x + 2|– 5 = -1

leonid [27]

Answer:

x=−6

x=2

Step-by-step explanation:

Combine like terms and use the properties of equality to get the variable on one side of the equal sign and the numbers on the other side. Remember to follow the order of operations.

∣x+2∣−5=−1

Add 5 to both sides of the equation.

∣x+2∣=4

Use the definition of absolute value.

x+2=4

x+2=−4

Subtract 2 from both sides of the equation.

x=2

x=−6

6 0

2 years ago