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Fed [463]
3 years ago
12

Verify the equation below with each of the values listed for z to find a solution . 3-2z=1/10

Mathematics
2 answers:
ziro4ka [17]3 years ago
8 0

3-2z=\frac{1}{10} \\30-20z=1\\-20z=-29 \\z=\frac{-29}{-20} \Longrightarrow z=\boxed{1.45}

bogdanovich [222]3 years ago
7 0

For this case we have the following equation:

3-2z = \frac {1} {10}

We must find the value of z that represents the solution of the equation:

We follow the steps below:

We multiply by 10 on both sides of the equation:

10 (3-2z) = 1

We apply distributive property to the terms of parentheses;

30-20z = 1

We subtract 30 from both sides of the equation:

-20z = 1-30\\-20z = -29

We divide between -20 on both sides of the equation:

z = \frac {-29} {- 20}\\z = \frac {29} {20}\\z = 1.45

If we substitute the value of z in the original equation, equality is satisfied.

Answer:

z = 1.45

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m = -3, 0.33

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3 years ago
shenika is inviting 7 friends to a party. if each friend will get 5 cookies and each box has 12 cookies. how many boxes does she
Naddik [55]

Answer:

Shenika invites 7 friends and each one gets 5 cookies.

= 7*5

= 35

Based on above answer, Shenika will need a total of 35 cookies for all.

-----------------------------------------------------------------------------------------------------------

Each box has 12 cookies.

Total cookies = 35

Let the number of boxes be x.

12*x = 35

x = 35/12

x = 2.9

This means she would need <em><u>3 boxes</u></em>.

8 0
3 years ago
I don't get this problem from maths.
NeTakaya

Answer:

100/3 or 33.33

Step-by-step explanation: If the perimeter of the whole figure is 220, we can use that number to solve the equations on the trapezoid.

2(2x-3) + 2(4) + 2(4x+1)

4x - 6 + 8 + 8x + 2

12x + 2

Now we have to set the equation equal to the perimeter to find the value of x

12x + 2 = 220

12x = 218

x = 109/6

Since we are only finding the length of PS, we will plug x into its equation (2x - 3).

2(109/6) - 3

109/3 - 3

109/3 - 9/3

100/3



4 0
3 years ago
Read 2 more answers
Write y-3= -(x+5) in standard form
pickupchik [31]
The answer is y=-x+8
7 0
3 years ago
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Answer this question pls (i will be posting the rest of the parts)
Anuta_ua [19.1K]

Answer:

(2,3)

Step-by-step explanation:

Simply equate the equations:

-2x+7=5x-7

14=7x

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Put this in one of the equations again.

$ y=-2(2)+7$

$\implies y=-4+7= \boxed{3}$

4 0
3 years ago
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