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Reptile [31]
2 years ago
12

I need help. I don't understand this question.

Mathematics
2 answers:
choli [55]2 years ago
6 0
Add 4 to both sides:
-9 + 4 = - p/5

Simplify -9 + 4 to -5:
-5 = - p/5

Multiply both sides by 5:
-5 x 5 = -p

Simplify -5 x 5 = -p:
-25 = -p

Multiply both sides by -1:
25 = p

Switch sides:
p = 25
Sergeu [11.5K]2 years ago
4 0

Answer:

p=25

Step-by-step explanation:

-5[-9=-\frac{p}{5} -4]    Get rid of the fraction by multiplying the whole equation by -5.

45=p+20      Then, subtract 20 from both sides.

25=p

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What is the messure of N and the two angles; an-16 and 6n
AURORKA [14]

Answer:

14, 96,84

Step-by-step explanation:

8n  - 16 + 6n = 180 {Supplementary angles}

<u>8n + 6n</u>  -16 = 180

Combine like terms

14n - 16 = 180

Add 16 to both sides

14n = 180 + 16

14n = 196

Divide both sides by 14

n = 196/14

n = 14

8n - 16 = 8*14 - 16 = 112 - 16 = 96

6n = 6 *14 = 84

7 0
2 years ago
Can someone solve for x please:
Alecsey [184]
THe LCD is x(x^2 - 4)

so multiplying through by this we get:-

2x(x + 2) + 7x =  5(x^2 - 4)
2x^2 + 4x + 7x = 5x^2 - 20
3x^2 - 11x  - 20 = 0

(3x + 4)(x - 5 ) =  0

so x =  5 , -4/3

Its the second choice
3 0
2 years ago
Read 2 more answers
Using substitution to solve the system below, what expression should be substituted into the first equation? 2x-4y=-4 and x+2y=8
inna [77]

Answer:

Given the system of equation:

2x-4y=-4                    ......[1]

x+2y=8                      ......[2]

we can rewrite equation [2] as;

x = 8-2y                ......[3]

Substitute equation [3] into [1] to eliminate x, and solve for y;

2(8-2y)-4y = -4

Using distributive property: a\cdot (b+c) = a\cdot b+ a\cdot c

16-4y -4y = -4

Combine like terms;

16 - 8y = -4

Add 4 to both sides we have;

20 - 8y = 0

Add 8y to both sides we have;

20 = 8y

Divide 8 to both sides we have;

y = 2.5

Substitute the y-value in [3] we have;

x = 8-2(2.5)

x = 8 - 5 = 3

Therefore, the  expression should be substituted into the first equation is, x = 8-2y  and also the value of x = 3 and y = 2.5

5 0
3 years ago
Read 2 more answers
6x^2 + 23x + 7 NEED HELP SOLVING QUADRATIC EQUATION
luda_lava [24]

Answer:

6x2 + 23x + 7 = 0

Factorization:

(2x + 7)(3x + 1) = 0

Solutions based on factorization:

2x + 7 = 0   ⇒   x1 = −7

2

= −3.5

3x + 1 = 0   ⇒   x2 = −1

3

≈ −0.333333

Extrema:

Min = (−1.916667, −15.041667)

Step-by-step explanation: hope this helps

6 0
3 years ago
PLEASE HELP ME ASAP! Please show your work.
Marysya12 [62]
Its 18....................................


6 0
3 years ago
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