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sveticcg [70]
3 years ago
5

ASAP NEED HELPPPPP!!! LOOK AT SCREEN SHOT

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

Answer:

-30

-Step-by-step explanation:

Step 1: Simplify both sides of the equation.

1/2y+5=-10

Step 2: Subtract 5 from both sides.

1/2y+5-5=-10-5

1/2y+-15

Step 3: Multiply both sides by 2.

2*(1/2y)=(2)*(-15)

y=-30

Hope this helpss,good luck w thisss

ivanzaharov [21]3 years ago
4 0

Answer:

the answer to your question is y = -30

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Show all work <br><br> 14 +18 - 2 x 18 -7
djverab [1.8K]

Answer:

-11

Step-by-step explanation:

BIDMAS

(BRACKETS, INDICES, DIVISION, MULTIPLICATION, ADDITION, SUBTRACTION)

14 + 18 - 2 x 18 -7

the first thing we do is the multiplication (since there is no division in this question)

14 +18 − (2)(18) −7

14 + 18 - (36) - 7

32 - 36 - 7 = -11

5 0
3 years ago
Please help with 3! i don’t know how to graph it or work it out
dedylja [7]

Checkout upload!!!


Solution:

2/x     +  y/4     =    3/2

Let's solve for y.

2/ x    +   y/ 4    =     3/ 2

Step 1: Multiply both sides by 4x.

xy     +    8    =     6x

Step 2: Add -8 to both sides.

xy    +    8    +    −   8    =    6x    +    −8

xy    =   6x   −    8

Step 3: Divide both sides by x.

xy/x     =       6x    -    8/x

Answer   =====>  y   =    6x     -   8/x




When Graph:  

y     =     6    -   8/x

x- Intercepts Points:

4/3,    and       0




Equation====>  2:

Let's solve for x.

2/ x      +    y/ 4     =      3/ 2

Step 1: Multiply both sides by 4x.

xy     +    8     =    6x

Step 2: Add -6x to both sides.

xy    +    8    +    − 6x    =     6x     +     −  6x

xy    −     6x    +    8    =    0

Step 3: Add -8 to both sides.

xy     −     6x    +    8    +    −    8      =     0    +       −8

xy     −    6x      =   −8

Step 4: Factor out variable x.

x(y   −   6)    =    −8

Step 5: Divide both sides by y-6.

x( y   -    6 )/y   -  6       =        -8/ y    -   6

Answer  ======>      x     =       -8/y    -   6







Hope that helps!!!!                                  : )

Download pdf
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
96d6fa3ffa42603c309a96f836b3b4c9.png
3 0
3 years ago
Find the equation of a line that passes through (0,0) that is perpendicular to 2x+3y=-6
Dovator [93]

The slope-intercept form of a line:

y=mx+b

m - slope

b - y-intercept

Convert 2x + 3y = -6 to the slope-intercet form:

2x+3y=-6         <em>subtract 2x from both sides</em>

3y=-2x-6         <em>divide both sides by 3</em>

y=-\dfrac{2}{3}x-2

Let k:y=m_1x+b_1 and l:y=m_2x+b_2

l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}

We have m_1=-\dfrac{2}{3}

Therefore

m_2=-\dfrac{1}{-\frac{2}{3}}=\dfrac{3}{2}

We have the equation of a line:

y=\dfrac{3}{2}x+b

Put the coordinates of the point (0, 0) to the equation:

0=\dfrac{3}{2}(0)+b

0=b\to b=0

Answer: \boxed{y=\dfrac{3}{2}x}


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Step-by-step explanation:

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