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Cerrena [4.2K]
3 years ago
15

What is the value of 357×8/21×17

Mathematics
2 answers:
uranmaximum [27]3 years ago
7 0

Answer:

2312

Step-by-step explanation:

solve from left to right when it's involving both division and multiplication unless brackets are involved

Naily [24]3 years ago
4 0

Answer:

........

Step-by-step explanation:

the answer should be 8

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A line passes through the points (-4,1) and (-3,3). This line can be modeled by the equation y
skelet666 [1.2K]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
If it takes Andre 4 minutes to swim five laps how much will it take him to swim 22 laps at the same speed
Musya8 [376]

Answer:

17.6 minutes

Step-by-step explanation:

\frac{4}{5} = \frac{x}{22}

5x=22

x=\frac{22}{5}

4(\frac{22}{5} ) = \frac{88}{5} = 17.6

5 0
3 years ago
A fitness club charges $25 per month as well as a one-time $80 fee of all new members which equation represents the cost in doll
madam [21]

Answer: So if you want to find the total cost (c) for a certain number of months (m) and it costs $35 per month, you just need to multiply the number of months by the cost per month. So

35m=c

If you want to see the units cancel

($35/month)(months)=$

The months will cancel out, and you will be left with total dollars.

Not sure about the second part of your question, but if you wanted to figure out how much it would cost to be a member for 6 months, you would just plug in 6 for m.

35(6)=c

c=210

So $210

Step-by-step explanation:

4 0
4 years ago
22 Simplify the expression below. 9 (-2-8) + (-16)​
MAXImum [283]
-19 + 72 -16
53 - 16
37
8 0
3 years ago
Read 2 more answers
A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year:
marin [14]

Answer:

Range = 85

\sigma = 28.71

Interval = [666.78, 781.62]

Step-by-step explanation:

Given

The data for 25 undergraduates

Solving (a): Range and Standard deviation

The range is:

Range = Highest - Least

From the dataset:

Highest = 772

Least = 687

So:

Range = Highest - Least

Range = 772-687

Range = 85

The standard deviation is:

\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}

First, calculate the mean

\bar x = \frac{769 +691 +............+715}{25}

\bar x = \frac{18105}{25}

\bar x = 724.2

So, the standard deviation is:

\sigma = \sqrt{\frac{(769-724.2)^2 +(691-724.2)^2 +(699-724.2)^2 +(730-724.2)^2 +............+(715-724.2)^2}{25}}

\sigma = \sqrt{\frac{20604}{25}}

\sigma = \sqrt{824.16}

\sigma = 28.71

Solving (b): The interval of the 95% of the observation.

Using the emperical rule, we have:

Interval = [\bar x - 2*\sigma, \bar x+ 2*\sigma]

Interval = [724.2 - 2*28.71, 724.2 + 2*28.71]

Interval = [666.78, 781.62]

4 0
3 years ago
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