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Damm [24]
3 years ago
14

0.1m+8-12n when m=30 and n=1/4

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
7 0

Answer:

8

Step-by-step explanation:

m=30      n=1/4

0.1*30+8-12*1/4

3+8-12*1/4

=3+8-3

=8

Rufina [12.5K]3 years ago
7 0

Answer: 2

Step-by-step explanation: 0.1(30) + 8-12(1/4)

3-4(1/4)

3-1= 2

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(9/89)x490+324<br> Please help
Likurg_2 [28]

Answer:

  1. (9/89)×490+324=
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  3. 4410/89+324=?
6 0
3 years ago
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PLEASEEE I NEED HELPPP!!!!
taurus [48]

Answer:

#carry on learning

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Find a point-slope form for the line that satisfies the stated conditions. Slope , passing through (-5,4)

I really need this question answered

By:

I don't see a value for the slope. We need that to set the equation, otherwise I can write an unlimited number of equations that pass through (-5,4).

I'll assume a slope so that you can see how the procedure would work. I like 6, so we'll assume a slope of 6.

The equation for a straight line has the form y = mx + b, where m is the slope and y is the y-intercept, the value of y when x = 0. We want a line that has slope 6, so:

y = 6x + b

We need to find b, so substitute the point (-5,4) that we know is on the line:

4 = 6*(-5) + b and solve for b

4 = -30 + b

b = 34

The line is y = 6x + 34

4 0
2 years ago
Please give answers for all
aivan3 [116]

Answer:

Step-by-step explanation:

5x+20 = 0

5X= -20

X= -20/5 = -4

8(4n+3) = 32n+24 =0

32n = -24

n = -24/32 = -3/4

12n-6=0

12n =6

n = 6/12 = 1/2

9(2x+9)

18x+81 =0

18x= -81

x= -81/18 = -9/2= -4.5

36+9y=0

36=-9y

36/-9 = y = -4

7(n-3) = 0

7n-21=0

7n = 21

n = 21/7

n=3

21+15a = 0

21= -15a

a= 21/-15 = 7/-5 = -1.4

32x-12x=0

20x=0

x=0/20 = 0

n-4-9=0

n-13=0

n=13

-3x-9+15x=0

-3x+15x-9 =0

12x-9=0

12x=9

x=9/12 = 3/4 = 0.75

-16N-14N=0

-30n=0

n=0/-30 =0

-10-90x-6x-10x²-2

-10-2-96x-10x²

-12-96x-10x²

10x²+96x+12

x= -b±√b²-4(a)(c)/2a

   {-96±√96²-4(10)(12)}/2(10)

{-96±√(9216-480)}/20

-96±√8736/20

-96±(93.4665715644)/20

-96+93.4665715644/20        -96-93.4665715644/20

-2.5334284356/20                 -189.466571564/20

-0.12667142178≅ -0.13             -9.4733285782≅ -9.47

-0.13                                                -9.47

-5(9n+9) =0

-45n-45 =0

-45n = 45

n = 45/-45 =-1

-5n+3(6+7n)

-5n+18+21n=0

-5n+21n+18 =0

16n+18 =0

16n = -18

n = -18/16 = -9/8 = -1.125

-4+7(1-3n)=0

-4+7-21n=0

3-21n=0

3=21n

3/21=n = 1/7

3n-(2n-8)

3n-2n+8=0

n+8=0

n=-8

5 0
3 years ago
The measures of two angles are 4 x ° and ( 2 x + 12 ) ° . What must be true if x = 13 ?
Dovator [93]

Answer:

4x degrees= 52 degrees

(2x+12) degrees= 38 degrees

Step-by-step explanation:

4(13)=52

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7 0
3 years ago
If x=3 what is 3x -5(9x3) divided by 2 and does any one wanna talk and at school?
mart [117]
<h3>Given :- </h3>

\quad \qquad \bullet \quad \sf x = 3

<h3>To Find :- </h3>

\quad \leadsto \quad \sf \dfrac{3x - 5 ( 9 \times 3 )}{2}

<h3>Solution :- </h3>

Let's Start :-

\quad \leadsto \quad \sf \dfrac{3x - 5 ( 9 \times 3 )}{2}

Putting the respective value of x we have ;

{ : \implies \quad \sf \dfrac{3\cdot 3- 5 (27 )}{2}}

{ : \implies \quad \sf \dfrac{9- 135}{2}}

{ : \implies \quad \sf - \dfrac{126}{2}}

{ : \implies \quad \bf - 61}

\quad \qquad { \bigstar { \underline { \boxed { \pmb { \bf { \red { \underbrace { \therefore \dfrac{3x - 5 ( 9 \times 3 )}{2} = - 61}}}}}}}}{\bigstar}

5 0
2 years ago
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