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Soloha48 [4]
3 years ago
6

Solve the equation 2.2 =z-1.1

Mathematics
2 answers:
Radda [10]3 years ago
7 0

Answer:

3.3

Step-by-step explanation:

In equations you must remember the important rule of keeping both sides balanced. If you do one operation to one side you must do it to the other, for example if you added 1.1 to the right side you must do it to the left side in order to keep the equation balanced so,

→ 2.2 = z - 1.1

⇒ Add 1.1 to both sides to isolate z

→ 3.3 = z

⇄ We can substitute 3.3 back into the equation to see if we have the right solution, if we get 2.2 on both sides then our solution is correct

→ 2.2 = z - 1.1

⇒ Substitute 3.3 into the equation

→ 2.2 = 3.3 - 1.1

⇒ Simplify

→ 2.2 = 2.2

Our solution of z = 3.3 is correct

Tresset [83]3 years ago
6 0

Answer:

Answer is 3.3 simplfly is 3.3 have good day

Step-by-step explanation:

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umka2103 [35]

Answer:

20

Step-by-step explanation:

The answer will be 20 because you are doubling from both sides.

3 0
3 years ago
The coordinate grid shows points a through k. Which points are solutions to the system of inequalities 2x+y 8 please help this i
andre [41]

Answer:

The points that verify the system of inequalities are:

point E, pointF, and point G.

Step-by-step explanation:

Please see the attached image that illustrates the boundary lines in your system of inequalities.

The boundary line for the inequality 2x+y is depicted in green, while the boundary line for the inequality 2x-4y>8 is depicted in red.

By solving for y in each inequality, we understand which half-plane should be considered for the inequality:

First inequality (green boundary line) :

2x+y

This means that we are to consider the points below the green boundary line.

Second inequality (red boundary line) :

2x-4y >8\\2x-8>4y\\y

This means we have to consider the points below the red boundary line.

Recall as well that both conditions we arrived at have to be satisfied by the points that are solutions of both inequalities.

From the image, we can see that there are only three points that reside at the same time below the green and the red boundary lines. These points are: point E, pointF, and point G.

On the other hand, we have two points that lie on a boundary line (point J and H), but they should be ignored, since the system of inequalities contain just inequality symbols < or >, and not the "equal" sign.

5 0
3 years ago
Fill in the missing value in each equation:<br>a)0.25+_____=0<br>b)-5×_____=-5<br>c)_____×-6=0
Mashutka [201]

Answer:

a) -0.25

b) 1

c)0

Step-by-step explanation:

a) 0.25 + (-0.25)=0

b) -5*1=-5

c) 0*(-6)=0

8 0
2 years ago
What is the solution to this system of equations? Negative 3 x + 5 y = negative 2. 3 x + 7 y = 26. NEED FAST TAKING UNIT TEST 40
Citrus2011 [14]

3x + 5y = -2

3x + 7y = 26

Subtract first equation from second

2y = 28

y = 14

Plug it in

x = -24

6 0
3 years ago
Read 2 more answers
Francisco needed to get his computer fixed. He took it to the repair
grin007 [14]

Answer:

  $95 per hour

Step-by-step explanation:

The total of charges is the sum of the cost of labor and the cost of parts. The cost of labor is the product of hours (5) and the cost per hour (x). Then the equation for total cost is ...

  total cost = parts cost + hours cost

  651 = 176 + 5x

  475 = 5x . . . . . . . subtract 176

  95 = x . . . . . . . . . divide by 5

The cost of labor per hour is $95.

6 0
3 years ago
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