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3 years ago

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Negative positive addition

2 answers:

brilliants [131]3 years ago

4 0

**I'm assuming you meant "Negative plus Positive"**

Honestly, when you add a negative number to a positive number, the outcome depends on the numbers added together.

For example, if you add -10 with 5, the sum is negative because the negative number is larger.

And on the other hand, if you add -5 and 10, the sum is positive because the positive number is larger.

Therefore, to determine whether a sum will be either positive or negative, see if there are larger negative numbers compared to positive numbers and vice-versa.

Hope this helps!

Sever21 [200]3 years ago

3 0

That is easy you do the addition and then what ever sign had the bigger number is the number the answer gets

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Find the greatest common factor of 15x2y3 and -18x3yz.

olganol [36]

For this case we have that by definition, the GFC (greatest common factor) of two numbers is given by the greater number that is a factor of both numbers. Then, let:

$15x ^ 2y ^ 3\\-18x ^ 3yz$

We decompose into factors:

15: 1,3,5,15

18: 1,2,3,6,9,18

The GFC is 3.

So, we have that the GFC of the expressions is:

$3x ^ 2y$

Answer:

$3x ^ 2y$

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4 years ago

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saul85 [17]

You mama can answer girl

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4 years ago

Which is not a statistical question?

Helga [31]

Answer:

d.

Step-by-step explanation:

A, B, and C ask questions that will be answered with different sets of data.

<u>example a:</u>

purple- 11 students

blue- 5 students

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<u>example b:</u>

math- 27

history- 30

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science books: 10 lbs.

If it were to ask how many windows are there in each of the classrooms then it would be statistical.

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3 years ago

Which measure of spread is the most appropriate for the data set represented by the graph?

Oksi-84 [34.3K]

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2 years ago

Paul has 2/3 as many postcards as Shawn. The number of postcards Shawn has is 4/5 of the number of postcards Tim has. If the thr

ahrayia [7]

Tim has 56 more postcards than Paul.

Step-by-step explanation:

Total postcards boys have = 280

Let,

x = Paul's postcards

y = Shawn's postcards

z = Tim's postcards

According to given statement;

x + y + z = 280 Eqn 1

$x=\frac{2}{3}y$ Eqn 2

$y = \frac{4}{5}z$ Eqn 3

Putting value of y from Eqn 3 in Eqn 2

$x=\frac{2}{3}*\frac{4}{5}z\\\\x=\frac{8}{15}z$ Eqn 4

Putting value of x and y from Eqn 4 and Eqn 3 in Eqn 1

$\frac{8}{15}z+\frac{4}{5}z+z=280\\\\\frac{8z+12z+15z}{15}=280\\\\\frac{35z}{15}=280\\\\$

Multiplying both sides by $\frac{15}{35}$

$\frac{15}{35}*\frac{35}{15}z=280*\frac{15}{35}\\z=120$

Putting z=120 in Eqn 3

$y=\frac{4}{5}*120\\y=96$

Putting y=96 in Eqn 2

$x=\frac{2}{3}*96\\x=64$

Difference of Tim and Paul = 120-64 = 56

Tim has 56 more postcards than Paul.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

7 0

3 years ago