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3 years ago

What would happen if you subtracted a negative ? example 4-(-5)

Mathematics

2 answers:

harkovskaia [24]3 years ago

8 0

Then the two negatives would combine to create a positive.

Yuri [45]3 years ago

5 0

It would turn positive so it would be:

4 + 5
Answer is 9

Hope this helps!

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Alberto ran a race at a speed of 9 meters per second. Omar had a 6 meter head start and ran at a speed of 7 meters per second. B

zloy xaker [14]

Answer: Alberto run 27 meters.

Time taken By Alberto=3 seconds

Step-by-step explanation:

Let d be the distance Alberto ran to catch Omar.

Then, distance ran by Omar=x-6

Also, $\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

Since, both started running at the same time.

Time taken By Alberto= $\frac{x}{9}$

Time taken By Omar= $\frac{x-6}{7}$

Now, at the point they meet time taken by both is equal.

$\frac{x}{9}=\frac{x-6}{7}\\\Rightarrow\ 7x=9(x-6)\\\Rightarrow7x=9x-54\\\Rightarrow9x-7x=54\\\Rightarrow\ 2x=54\\\Rightarrow\ x=27$

Hence, Alberto run 27 meters.

Time taken By Alberto= $\frac{27}{9}$ =3 seconds

6 0

4 years ago

(50 points) please help! no links, brainliest, extra points.

monitta

Answer:

The answer is B. The correct median of the data set is C, 15.

Step-by-step explanation:

To do a quick recap:

Mode is the average value that is found by adding up all the values and dividing them by the number of values you used.

Median is the number found in the very middle, so Darcy is correct about what a median is.

Mode is the number that appears most.

Notice that the numbers are not arranged in numerical order from least to greatest. She just took the number that she saw in the middle, without considering where it would stand if the numbers were ranked from least to most.

Here's a ranking of all the numbers from least to greatest:

8, 9, 9, 12, 13, 14, 15, 15, 16, 16, 16, 17, 21

From this ranking, we can see that there are a total of 13 numbers. Therefore, the 7th number is the median, which means that the median is 15.

6 0

3 years ago

Pllleeeeeeaaaaseeeee heeeellllp

Grace [21]

The answer would be C since you have to distribute hope I helped

7 0

3 years ago

Read 2 more answers

Bonjour pouvez vous m'aider pour les exercices 81 à 85 je suis en 6ème. Merci de m'aider.

spin [16.1K]

Je vous aiderais... mais y a-t-il une question pour elle ?

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3 years ago

PAGE NO.

NARA [144]

put your question properly

Step-by-step explanation:

4 0

3 years ago