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melomori [17]
3 years ago
11

I’m stuck on this question please help me

Mathematics
1 answer:
frozen [14]3 years ago
3 0

Answer:

im pretty sure its the 2nd or 3rd one

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I need all parts answered please!
Arisa [49]
Width = w
d)length in term of width
 w + 5
b)
2(w + w + 5) > 30
2(2w +5)>30

c)
solve
2(2w +5) > 30
4w + 10 > 30
4w > 20
  w > 5

5 0
3 years ago
I need help with these 4 questions on my math homework! I have some examples with it but I still don't know how to do them... (S
lesya [120]

Step-by-step explanation:

For equation N°2

-x-3 = 0\\

Solving algebraically:

-x + x -3 = x (Sum x on both sides of the equation)

-3 = x\\


Resolving graphically:

x = -2 --------- - (- 2) -3 = -1 pto (-2, -1)

x = -4 ---------- - (- 4) -3 = 1 pt (-4.1)

x = -3 --------- - (- 3) -3 = 0 pt (-3.0) Solution

The graphic is shown in the attached image. The red dot in the graph represents the solution


For equation N° 4

9x +3 = 0\\

Solving algebraically:

9x+3 -3 = -3 (Sum -3 on both sides of the equation)

9x =-3


\frac{9x}{9}=\frac{-3}{9} (divided by 9 on both sides of the equation)

x =\frac{-3}{9} (simplifies the fraction)

x =\frac{-1}{3}


Resolving graphically:

x = 1 --------- 9 (1) +3 = 12 pt (1.12)

x = -1 --------- 9 (-1) +3 = -6 pto (-1, -6)

x = -1 / 3 -------- 9 (-1/3) +3 = 1 pt (-1 / 3.0) Solution

The graphic is shown in the attached image. The red dot in the graph represents the solution


For equation N°. 6.

4x + 11 = 4x-24\\

Solving algebraically:

4x -4x +11 = 4x -4x-24 (Sum -4x on both sides of the equation)

11 = -24 The equation is not met, the x are eliminated, therefore, it has solution


For equation N°. 8

-6x +3 = -6x + 5\\

Solving algebraically:

-6x + 6x +3 = -6x + 6x +5 (Sum 6x on both sides of the equation)

3 = 5 The x are eliminated, 3 is not equal to 5, the equality is not met. The equation has no solution.

7 0
3 years ago
Mary has a collection of nickels and quarters for a total value of 4.90.if she has 42 coins total how many of each kind are ther
Anna007 [38]
Mary has a collection of nickels and quarters for a total value of 4.90.if she has 42 coins total how many of each kind are there

4 0
3 years ago
0.75x — 13 = 2<br> What's the value of x
pav-90 [236]

Answer:

The value of x is 20.

Step-by-step explanation:

The steps are :

0.75x - 13 = 2

0.75x = 2 + 13

0.75x = 15

x = 15 ÷ 0.75

x = 20

8 0
3 years ago
Que es còncovo o convexo
yaroslaw [1]

that picture dont make sense you need a better one sorry

3 0
3 years ago
Read 2 more answers
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