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Elena-2011 [213]
3 years ago
11

20=5z-13 z=??? -9+2x=-4 x=??????

Mathematics
2 answers:
Furkat [3]3 years ago
4 0

Answer:

z = 33/5 or 6.6

x = 5/2 or 2.5

Step-by-step explanation:

20 = 5z - 13

Add 13 to both sides.

5z = 33

Divide both sides by 5.

z = 33/5 or 6.6

-9 + 2x = -4

Add 9 to both sides.

2x = 5

Divide both sides by 2.

x = 5/2 or 2.5

enyata [817]3 years ago
3 0

Answer:

a)20+13=5z

33=5z

33/5=z

6.6=z

b)2x=-4+9

2x=5

x=5/2

x=2.5

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Answer:

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Step-by-step explanation:

we are given

(2x+3)(2x+3)

Firstly, we will distribute it

=2x\times 2x+2x\times 3+3\times 2x+3\times 3

now, we can simplify it

=2\times 2\times x\times x+2\times 3x+3\times 2x+9

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so, we get simplified term as

(2x+3)(2x+3)=4x^2+12x+9

7 0
4 years ago
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Ray Of Light [21]
The answer is 9 pounds. how I arrived at it was to compute the following equation


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7 0
3 years ago
Can u answer this please
Svetradugi [14.3K]

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C

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4 0
3 years ago
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Olegator [25]
Y = mx + b is the slope-intercept form of the equation of a line,
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In problems 1 and 3, your equations are written in the y= mx + b form, so you can read the slope and y-intercept directly.

1.
m = -5/2
b = -5

3.
m = -1
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5.
For problem 5, you need to solve for y to put the equation
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y = -4/16 x - 8/16

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7 0
4 years ago
If (14,25) and (9,-10) are two anchor points on a trend line, then find the equation of the line.
posledela

Answer:

y= 7x-73

Step-by-step explanation:

the equation form is y=mx+c where m is the slope and c a constant

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so y= 7x+c

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c = -73

so y= 7x-73

3 0
3 years ago
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