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Sedbober [7]
3 years ago
15

4m - 9= 31 I can’t remember how to work this out. Can someone help?

Mathematics
2 answers:
Schach [20]3 years ago
8 0

Answer:

4m - 9 = 31   4m= 40 because m=10 10 times 4 = 40

Step-by-step explanation:

lianna [129]3 years ago
5 0

Answer:

10

Step-by-step explanation:

4m=40

m=10

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What is the term for a point that varies greatly from all other data points
xenn [34]

The term for a point that varies greatly from all other data points is known as an <u>OUTLIER</u>

<u></u>

Explanation:

  • An outlier is a data point that differs significantly from other observations. An outlier may be due to variability in the measurement or it may indicate experimental error.
  • An outlier can cause serious problems in statistical analyses.
  • An outlier is an observation that lies an abnormal distance from other values in a random sample from a population. In a sense, this definition leaves it up to the analyst to decide what will be considered abnormal.
  • A point that falls outside the data set's inner fences is classified as a minor outlier, while one that falls outside the outer fences is classified as a major outlier.
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7 0
3 years ago
The speed of boat in still water is 15km/hr if needs 4 more his to travel 63 km against the current of a river than it needs to
hram777 [196]

Answer:

\frac{63}{15  - c} - \frac{63}{15  + c} = 4

Step-by-step explanation:

The systems of equations are

Let us assume the rate of the current be c

Now actual speed against the current is (15 - c)

And, the actual speed with the current is (15 + c)

Here we applied the time formula i.e. distance by speed

Also the upstream time  - downstream time = 4

Now the equations are

\frac{63}{15  - c} - \frac{63}{15  + c} = 4

5 0
3 years ago
It costs a petroleum refinery $0.39 to refine one gallon of gasoline, and $0.39 to refine one gallon of natural gas. The
GaryK [48]

Answer:

a.

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Step-by-step explanation:

i took the test

6 0
3 years ago
Fatheya purchased a prepaid phone card for $25. Long distance calls cost 12 cents a minute using this card. Fatheya used her car
Pachacha [2.7K]

Answer:

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First you take away the original amount away from the remaining amount.

$25 - $22.36 = $2.64

Then you take that number and divide it by the cents per minute.

$2.64 ÷ 12 = 0.22

Then that's your answer!

Her call lasted 22 minutes.

7 0
3 years ago
The town of lantana needs 14,000 for a new playground. Lantana elementary school raised 5,258, Lantana middle school raised 2834
Nutka1998 [239]
Lantana needs $1776 to reach its goal of $14000
5 0
3 years ago
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