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GrogVix [38]
3 years ago
12

Why can you multiply or divide both terms of a ratio by the same number without changing the value of the ratio?

Mathematics
1 answer:
LiRa [457]3 years ago
5 0
3:4 = 6:8

\frac{3}{4} =  \frac{6}{8}


The same principle is used with fractions. The identity property of multiplication states that any number times 1 is the same number. Since \frac{2}{2} = 1, the fraction/ratio does not change in value.
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z scores are useful because they:a. allow us to convert raw scores to mean scores, compare scores from different samples, and tr
Alla [95]

Answer:

they give us a sense of where a score falls in relation to the mean of its population (in terms of standard deviation of its population), 2) they allow us to compare scores from different distributions, and 3) they can be transformed into percentiles.

Step-by-step explanation:

3 0
3 years ago
In order to qualify for a role in a play, an actor must be taller than 64 inches but shorter than 68 inches. The inequality 64 &
iren [92.7K]

Answer:

Option A is correct.

Step-by-step explanation:

64 < x < 68

This inequality represent that the height x should be greater than 64 and less than 68.i.e.

x>64 and x<68

So, Option A is correct.

8 0
3 years ago
Help please, be sure your right.
Zarrin [17]

Answer:

Step-by-step explanation:

<u><em>System A and System B are </em></u><u><em>not equivalent</em></u> !!!  

4 0
3 years ago
A commonly used unit of mass in the English system is the pound-mass, abbreviated lbm, where 1 lbm = 0.454 kg. What is the densi
Rashid [163]
<h2>Density of ethyl alcohol is 56.25 lbm/ft³ </h2>

Step-by-step explanation:

We have 1 lbm = 0.454 kg

1 kg = 2.203 lbm

1 m = 3.28 ft

Density of ethyl alcohol = 9.01 x 10² kg/m³

\texttt{Density = }\frac{9.01\times 10^2\times 2.203}{3.28^3}=56.25lbm/ft^3

So

Density of ethyl alcohol = 56.25 lbm/ft³

3 0
3 years ago
Find the distance between the points (2,0) and (-4,6)
N76 [4]

Answer:

You have to move 6 times to the left and 6 times down.

Step-by-step explanation:

If you're at (2,0), you move 2 times to the left, and then you're at (0,0).

Next move 4 times to the left. Now you're at (-4,0).

Now, move 6 times down, and now, you're at (-4,-6).  

7 0
3 years ago
Read 2 more answers
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