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3 years ago

What is a negative number minus a negative number?

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

8 0

Answer:

$-x-(-y) = y-x$

Step-by-step explanation:

lets say you have two negative numbers, -x and -y (x and y are positive).

$-x-(-y) = y-x$

alexgriva [62]3 years ago

8 0

Your answer is a positive number.

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dan and cheryl paddled their canoe 40 mi in 5 hr with the current and 16 mi in 8 hr against the current. Find the speed of the c

Arada [10]

Let the speed of the current be x and the speed of the canoe in still water be y, then

$y+x= \frac{40}{5} =8 \\ y-x= \frac{16}{8} =2$

Adding the two equations, we have:

$2y=10 \\ \\ \Rightarrow y=5$

From any of the equations, we have that x = 2

Therefore, the speed of the current is 2 miles per hour while the speed of the canoe in still water is 5 miles per hour.

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4 years ago

Which expression has a coefficient of positive 1 for the the term n?

yanalaym [24]

Answer:

3n^2+n-2

Step-by-step explanation:

Coefficient is the number that we multiply an expression that contains a variable. In all the expressions above the variable is n.

Some examples:

Coefficient of n^2 is 1.

Coefficient of n in n^2+2n+1 is 2.

Solution:

In 5n^2+6n-1 the Coefficient of n is 6.

In 2n^2+5n+1 the Coefficient of n is 5.

In 40^2 - n +9 the Coefficient of n is - 1.

In 3n^2 +n - 2 the Coefficient of n is POSITIVE 1.

We tend to not write 1*n because 1*n=n.

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3 years ago

Possible factors of 15<br><br><br>

Damm [24]

Answer:

Answer : 1,3,5,15

Step-by-step explanation:

The factors of 15.

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4 years ago

What do the details in this passage tell you about

geniusboy [140]

Answer: A he was determined and hard working

Step-by-step explanation:

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4 years ago

The area of a triangle is found by multiplying half of the measure of its base by its height. The area of the following right tr

Scrat [10]

Answer:

AREA OF TRAINGLE =18

WE NO THE AREA OF 1/2 BH

B=6

PLUGGING IN THE VALUES

18 1/2 6 (H+1)

6=H+1

H=5

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3 years ago