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disa [49]
3 years ago
13

Is negative 55 a rational number

Mathematics
2 answers:
Alex3 years ago
7 0
55 is a rational number because it can be expressed as the quotient of two integers: 55 ÷ 1.
Likurg_2 [28]3 years ago
3 0

Answer:

Negative 55 is a rational number.

Step-by-step explanation:

This number can be expressed as a fraction where a & b are integers. By a & b i mean (a/b). B isn't equal to 0.

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A water tanker can fill
VikaD [51]

Answer:

56 mins

Step-by-step explanation:

Number of gallons of water in the pool per minute;

750 divided by 35 = 150/7

Let the time needed to fill a 1,200 gallon pool be t.

t x 150/7 = 1,200

t x 21.42857142857143... = 1,200

t = 1,200/21.42857142857143

t = 56 mins

6 0
3 years ago
The local gym offers classes in strength and agility. The gym has 16 strength classes
Bas_tet [7]

Answer:

B. 1.25

Step-by-step explanation:

20/16

4 0
4 years ago
Read 2 more answers
You are testing a claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds. You
dedylja [7]

Answer:

There is sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds

Step-by-step explanation:

We shall need to formulate the hypotheses but first we need to understand the claim in context of this question. The claim is that  the standard deviation of time all women spend washing their hair in the morning is 15 seconds. In mathematical notation, this claim can be written as follows;

σ = 15

Clearly the claim contains an equality sign and thus it qualifies to be our null hypothesis;

H0: σ = 15

The complement of the above hypothesis will be our alternative hypothesis;

Ha: σ ≠ 15

We are then informed that the initial conclusion of the test fails to reject the null hypothesis. In short this implies that we fail to reject the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds since this claim is our null hypothesis. If we fail to reject a claim in hypothesis testing, this implies that there is sufficient evidence to support the claim. Therefore, there is sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds

8 0
3 years ago
A bag contains 8 red balls and 6 blue
Andreyy89

Answer:

The probability that all 3 balls are red is 18.65%, while the probability that all 3 balls are blue is 7.87%.

Step-by-step explanation:

Since a bag contains 8 red balls and 6 blue balls, and Radhika takes three balls at random from the bag, without replacement, to calculate the probability that the three balls are the same color, the following mathematical operations must be performed:

8 + 6 = 14

14 = 100

8 = X

8 x 100/14 = X

800/14 = X

57.14 = X

100 - 57.14 = 42.86

0.5714 ^ 3 = X

0.1865 = X

0.4286 ^ 3 = X

0.0787 = X

Therefore, the probability that all 3 balls are red is 18.65%, while the probability that all 3 balls are blue is 7.87%.

5 0
3 years ago
The answer to the question: "How much money in dollars will a typical person spend on lunch during a five-day work week?" will b
jeyben [28]
B. tens
An average meal is <span>$12.75. Multiply that times five days and you get $63.75. That isn't thousands or hundreds and it's too low to be ones.</span>
6 0
3 years ago
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