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4 years ago

Determine whether each pair of ratios are equivalent ratios. Write yes or no.

Mathematics

1 answer:

Novay_Z [31]4 years ago

5 0

Answer:

1. Yes

2. Yes

Step-by-step explanation:

1. 9/11 is equal to 81/99 because if you simplify 81/99 (divide by 9), you get 9/11.

2. 29.2/10.4 is equal to 7.3/2.6 because when divided, they both equal to 2.807692308.

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1.What is the true density of water? 2.What variables change the density of water? 3. How does water go against the concept of "

artcher [175]

Answer:

1. A common unit of measurement for

water's density is gram per milliliter

(1 g/ml) or 1 gram per cubic

centimeter (1 g/cm3). Actually, the

exact density of water is not really 1

g/ml, but rather a bit less (very, very

little less), at 0.9998395 g/ml at 4.0°

Celsius (39.2° Fahrenheit).

2. Water density changes with

temperature and salinity. Density is

measured as mass (g) per unit of

volume (cm). Water is densest at

3.98°C and is least dense at 0°C

(freezing point). Water density

changes with temperature and

salinity.

3. When water is a liquid, the water

molecules are packed relatively

close together but can slide past

each other and move around freely

(as stated earlier, that makes it a

liquid). Pure water has a density of

1.000 g/cm3 at 4° C. As the

temperature increases or decreases

from 4° C, the density of water

decreases.

6 0

3 years ago

Read 2 more answers

lucia works at her family's italian restaurant . A 20% tip is included with each other. one customer wants to know the price bef

alina1380 [7]

Answer:

$26.88

Step-by-step explanation:

33.60x.20=6.72

33.60-6.72= 26.88

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4 years ago

Each of the 50 students participating in a workshop is either an undergraduate or a graduate student. If P is the probability th

faust18 [17]

Answer:

Step-by-step explanation:

7 0

4 years ago

Oregon State University is interested in determining the average amount of paper, in sheets, that is recycled each month. In pre

Juliette [100K]

Answer:

The test statistic is $t = 2.79$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 59.3$

The sample size is $n = 79$

The sample mean is $\= x = 62.4$

The standard deviation is $\sigma = 9.86$

Generally the test statistics is mathematically represented as

$t = \frac{\= x - \mu }{ \frac{ \sigma}{ \sqrt{n} } }$

substituting values

$t = \frac{ 62.2 - 59.3 }{ \frac{ 9.86}{ \sqrt{ 79} } }$

$t = 2.79$

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4 years ago

The nth term of a sequence is 20 – n?

Hitman42 [59]

Answer:

a) 17

b) 21st term

Step-by-step explanation:

a) 20 - 3 = 17

b) 20 - 21 = -1

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3 years ago