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GalinKa [24]

3 years ago

middle" class="latex-formula">

Mathematics

2 answers:

Ostrovityanka [42]3 years ago

5 0

You can subtract a negative number from a positive number or add a positive number to a negative number

Example:

4 - (7) = -3

Or

-8 + 9 = 1

Whatever you are adding has to be greater than the number you are adding on too

Example:

-3 + 5 = 2
Notice how the five is greater than 3

Whatever you are subtracting has to be Greater than the number you are subtracting from.

Example:

5 - 8 = -3
Notice how the eight is greater than five.

The situation changed when adding or subtracting with negative numbers. Every situation is different.

Hope this helps!

Good Luck!

Lera25 [3.4K]3 years ago

3 0

You can subtract a negative number from a positive number or add a positive number to a negative number

Example:

4 - (7) = -3

-8 + 9 = 1

Whatever you are adding has to be greater than the number you are adding on too

Example:

-3 + 5 = 2

Notice how the five is greater than 3

Whatever you are subtracting has to be Greater than the number you are subtracting from.

Example:

5 - 8 = -3

Notice how the eight is greater than five.

The situation changed when adding or subtracting with negative numbers. Every situation is different.

Hope this helps!

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The height of a scale model building is in 15 in.The scale is 5 in. to 32 in.Find the height of the actual building in inches an

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4 years ago

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Is -92 a rational number

VARVARA [1.3K]

Answer: Yes

Step-by-step explanation: A rational number is a number that can be described as a fraction. -92 can be a fraction, therefor it's rational.

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3 years ago

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The day's high temperature in St. Louis comma Missouri was recorded as 77 degrees' F. Use the formula Upper C=5/9(F-32) to writ

ludmilkaskok [199]

Answer:

The day's high temperature written as degrees Celsius is 25 degrees' Celsius.

Step-by-step explanation:

The day's high temperature in St. Louis ,Missouri was recorded as 77 degrees F.

We are supposed to find the day's high temperature written as degrees Celsius.

Formula : $C=\frac{5}{9}(F-32)$

Substitute the value of F is 77 degrees

So, $C=\frac{5}{9}(77-32)$

$C=\frac{5}{9}(45)$

C=25

Thus, The day's high temperature written as degrees Celsius is 25 degrees' Celsius.

6 0

3 years ago

Solve by completing the square: x^2+15=8x

Nataly_w [17]

<span>x^2+15=8x
</span><span>x^2-8x=-15
x^2 - 2 (x)(4) =-15
adding 16 on both sides
</span>x^2 - 2 (x)(4) +16=-15+16
x^2 - 2 (x)(4) + 4^2= 1

(x-4)^2=1

taking square root on bothsides x-4 = +-1
so x-4=1 or x-4=-1
x-5 or x=3

3 0

4 years ago

HELP ME I WILL GIVE 5 STAR REVIEW AS A UBER DRIVER

TEA [102]

Answer: x = 7 (choice C)

"sum of 1 and 3 times a number" means we have the expression 1+3*x for some unknown number x. This is set equal to 22, and we isolate x. The idea is to follow the order of operations PEMDAS in reverse. So start with subtraction and try to undo it. If it's not present, then undo addition, and so on, until x is all by itself on one side.

1+3x = 22

3x+1 = 22

3x+1-1 = 22-1 ... see note 1 below

3x = 21

3x/3 = 21/3 .... see note 2 below

x = 7

note1: Undoing addition. We undo the "+1" by subtracting 1 from both sides

note2: Undoing multiplication. 3x means "3 times x". The inverse of this is division which means we divide both sides by 3

8 0

3 years ago