3 years ago

Subtraction and division are derived from addition and multiplication. true or false

1 answer:

3 0

TRUE

1) x = a + b => a = x - b and b = x - a

2) a.b = c => a = c / b and b = c/b

You might be interested in

lutik1710 [3]

Answer:

False

Step-by-step explanation:

Consider the equations with the same number of equations and variables as shown below,

$x_{1} + x_{2} = 0\\x_{1} + x_{2} = 1$

This equation has no solution because it is not possible to have two numbers that give a sum of 0 and 1 simultaneously.

$x_{1} + x_{2} = 1\\2x_{1} + 2x_{2} = 2$

This equation has infinitely many possible solutions.

Therefore it is FALSE to say a linear system with the same number of equations and variables, must have a unique solution.

5 0

2 years ago

Lelechka [254]

Answer: day 11

equation: 100-3d=20+5e

Step-by-step explanation:

do a table. 100-3: 20+5: 97-3:25+5 until you get to the same number. I think that's how you do it. I hope it helps.

4 0

3 years ago

Ad libitum [116K]

17 bc I did it trust me pls

6 0

2 years ago

user100 [1]

Answer:

1,000

Step-by-step explanation:

1,000 miligrams is 1 gram hope this helps god bless

8 0

2 years ago

Dvinal [7]

Answer:

He has 42 books in total.

Step-by-step explanation:

You add 9 + 33 to get 42. 3 plus 9 is 12, so the 1 is carried over to the other 3. Add those together to get a sum of 42.

4 0

3 years ago