Answer:
-2x+2y+3z=0
-2x-y+z=-3
2x+3y+3z=5
---------------
-2x+2y+3z=0
-2x-y+z=-3
---------------- Subtract
3y + 2z = 3 Eqn A
=========================
-2x-y+z=-3
2x+3y+3z=5
---------------- Add
2y + 4z = 2
6y + 4z = 6 Eqn A times 2
------------------------------------ Subtract
-4y = -4
y = 1
-----------------
z = 0
-------------------
x = 1
Answer:
1 17/22
Step-by-step explanation:
Answer:A standard form is a form of writing a given mathematical concept like an equation, number, or an expression in a form that follows certain rules. Representing very large or very small numbers concisely, the standard form is used. For example, 4.5 billion years is written as 4,500,000,000 years.
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
5 times 2 is 10.
Variables!!!!
3.2355
Fist we line up all the numbers, we forget about the decimal for a moment and we will come back to it in the end.
7.19
x0.45
----------
28760
We put 0 first because we are working on the ten place, and we do a normal multiplication problem: 4*9= 36 (bring the 3 over). 4*1= 4+3 = 7. 4*7= 28 Then we work on the second part.
7.19
x0.45
----------
<span> 28760
</span> <span>3555
</span>
As same as the first step, it is normal multiplication...
7.19
x0.45
----------
28760
<span>3555
</span>-----------
32315
We all both numbers together... For the final answer, we count the decimal place of the numbers given in the problem, 7.19 and 0.45. They both have 2 decimal places, so 2+2=4. So 4 decimal places. We give the final answer 4 decimal places.
3.2315
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