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Sergio039 [100]
4 years ago
10

Is -7+9=-9+7 true,false,or open?

Mathematics
2 answers:
stellarik [79]4 years ago
5 0
This statement will be false. 

-7+9=2
-9+7=-2

2  \neq  -2, therefore, this statement is false.
Basile [38]4 years ago
3 0
The answer you are looking for is false because on of the answer will be negative and the other will be positive hope that helps *smiles* 
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2n-3 sequence 1st term
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First term = 2(1) - 3 = 2 - 3 = -1
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4 years ago
On a number line what nomber is 3 units to the left of 3​
tatyana61 [14]

Answer:

Hello There!!

Step-by-step explanation:

The answer is 0. The number is 3 and you move 3 units to the left which is toward the negative numbers sides below zero which equals the answer as 0. [3-3=0.]

hope this helps,have a great day!!

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7 0
3 years ago
5. Priya mixes 2..5 cups of water with 1/3 cup or orange juice concentrate. Diego mixes 1 2/3 cups of water with 1/4 cup or oran
Snowcat [4.5K]

Priya needs 13⅓ cups of orange juice

Diego 15 cups

Step-by-step explanation:

......................................................................................................................

Priya

......................................................................................................................

Cup of water = 2½

Cup of orange = ⅓

If 2½ cups of water requires ½ cup of orange juice concentrate

Then 100 cups of water would require x cup of orange

Representing the above statement mathematically

2½ : ⅓ = 100 : x

5/2 : 1/3 = 100 : x ------------------Convert ratio sign to division

5/2 ÷⅓ = 100/x

5/2 * 3 = 100/x

15/2 = 100/x ---------------Multiply both sides by x

15/2 * x = 100/x * x

15x/2 = 100 ------------------ Multiply both sides by 2

2 * 15x/2 = 2 * 100

15x = 200 --------------- Divide both sides by 15

x = 200/15

x = 13⅓

So, 13⅓ cups of orange is needed by Priya

......................................................................................................................

Diego

......................................................................................................................

Cup of water = 1⅔

Cup of orange = ¼

If 1⅔ cups of water requires ¼ cup of orange juice concentrate

Then 100 cups of water would require x cup of orange

Representing the above statement mathematically

1⅔:¼ = 100:x

5/3 : ¼ = 100:x

5/3 ÷¼ = 100 ÷ x

5/3 * 4/1 = 100 ÷ x

20/3 =100/x----------------------- Multiply x to both sides

20/3 * x = 100/x * x

20x/3 = 100 ------------------------ Multiply 3 to sides by 3

3 * 20x/3 = 100 * 3

20x = 300 ------------- Divide both sides by 2

20x/20 = 300/20

x = 15

So, 15 cups of orange is needed by Diego

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3 years ago
2x-2y= 14 standard to slope and intercept form
valina [46]

Answer:

hhhci

Step-by-step explanation:

4 0
3 years ago
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Estimates show that there are 1.4*10^8 pet fish and 9.4*10^6 pet reptiles in the United States.
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\bf \stackrel{fish}{1.4\times 10^8}~~+~~\stackrel{reptiles}{9.4\times 10^6}&#10;\\\\\\&#10;\stackrel{fish}{140000000}~~+~~\stackrel{reptiles}{9400000}\implies &#10;\begin{array}{rrrrllll}&#10;140000000\\&#10;+9400000\\&#10;\text{\textemdash\textemdash\textemdash\textemdash\textemdash}\\&#10;149400000&#10;\end{array}\implies 1.494\times 10^8
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