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kvasek [131]
3 years ago
14

Unit Rate Comparison Practice

Mathematics
1 answer:
Rama09 [41]3 years ago
5 0

Answer:

\frac{2}{41} \: of \: a \: cup \: of \: sugar \: on \: 4 \: cups \: of \: a \: flour

Step-by-step explanation:

3:246=x:4 \\  \frac{3}{246}  =  \frac{x}{4}  \:  \:  =  >  \:  \: x =  \frac{3 \times 4}{246}  =  \frac{12}{246}  =  \frac{2}{41}

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√7 as a fraction <br><br>pls help <br><br><br><br><br><br><br><br>​
ikadub [295]

Answer:

2645/1000

Step-by-step explanation:

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7 0
3 years ago
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The hourly wages of a sample of 130 system analysts are given below.
atroni [7]

Answer: b. 30%

Step-by-step explanation:

  • A measure of relative variability is known as coefficient of variation. It is the ratio of the standard deviation to the mean.

i.e. CV=\dfrac{\sigma}{\mu}

Given: mean =  \mu=90

Variance = \sigma^2 = 729

\sigma=\sqrt{729}=27

Now, CV=\dfrac{27}{90}=0.3

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Hence, correct option is  b. 30%.

8 0
2 years ago
How do I solve this
gladu [14]
Make a proportion

x = the amount of miles walked in 137.5 min

25      137.5
---  =  --------
 2          x

cross multiply

25x = 275
divide both sides by 25
x = 11

paul walked 11 miles in 137.5 minutes
3 0
3 years ago
Snoopy the dog is on a 11-ft long chain that is attached to the corner of a garage (see the picture below). If the chain does no
seropon [69]
11*2 = 22 (calculating the diameter)

Using πD for the area:
π * 22 = 22π

Getting 3/4 of the area because the dog can not move past the corners of the garage;

22π * 3/4 = 16.5π

Getting the answer in feet^2:
16.5 * 3.14 = 51.84 feet^2

Hope this helps! :)
5 0
3 years ago
A student is asked to factor, if possible, the given expression. The student's response demonstrates which common misconception?
dlinn [17]

Answer:

The student assumed he was asked to factor

(a^2 - b^2)

Which is equal to

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But, he was asked to simplify

(a^2 + b^2)

Which has imaginary roots, and can be factored as:

(b +ai)(b-ai)

8 0
3 years ago
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