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Marianna [84]
3 years ago
13

18 songs for 30 minutes unit rate as a fraction.

Mathematics
1 answer:
zhenek [66]3 years ago
8 0

Answer:

1.67 minutes per song

Step-by-step explanation:

<u> </u><u>3</u><u>0</u><u> </u><u>min</u><u>utes</u>

18 song

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Which of the following lists is ordered from least to greatest?
ryzh [129]

Answer:

The first one

Step-by-step explanation:

Negative 5 is smaller than negative 3. 0.8 is smaller than one. 1 is smaller than 1.5

4 0
3 years ago
What is an efficient way to compute 47^2–37^2 without using raw calculations?
e-lub [12.9K]

Answer:

(47+37)(47-37)

Step-by-step explanation:

47^2-37^2 is a difference of two squares. a^2-b^2 = (a+b)(a-b) so this expression can be factored to (47+37)(47-37) = (84)(10) = 840

6 0
3 years ago
Write 7200kg in grams, give your answer in standard form
Snezhnost [94]
7200 kg = 7.200.000 grams because 1 kg is 1000 grams
4 0
3 years ago
Do men’s voting preferences differ significantly from women’s voting preferences?"" Use a level of significance of α = 0.05. Whi
baherus [9]

Answer:

<em>H₀</em>: The voting preference of men and women are not different.

<em>Hₐ</em>: The voting preference of men and women are not different.

Step-by-step explanation:

A hypothesis test for two proportions can be used to determine whether the preference of men differ from women in case of voting.

A Chi-square test contingency table can be used to perform the test.

The hypothesis can be defined as:

<em>H₀</em>: The voting preference of men and women are not different.

<em>Hₐ</em>: The voting preference of men and women are not different.

The test statistic is:

\chi^{2}=\frac{Row\ total\times Column\ total}{N}

Decision rule:

If the <em>p</em>-value of the Chi-square test statistic is less than the significance level <em>α</em> = 0.05 then the null hypothesis will be rejected. And if the <em>p</em>-value is more than the significance level then the null hypothesis will not be rejected.

8 0
3 years ago
Hullan's age is three times Thomas's age. The sum of their ages is 92. What is Thomas's age?
Ksju [112]

Answer: 23

Step-by-step explanation: You can start by setting this up as an equation like so,

X + 3(X) =92 where x is Thomas’ age and the 3x indicates Hullans age being 3 times greater than Thomas.

Combine the x’s

4(x) = 92

Divide by 4 X = 92/4

92/4 = 23, x = 23

7 0
3 years ago
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