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yuradex [85]
3 years ago
8

Algebra II line: 3(x - 2) > 5x + 8

Mathematics
1 answer:
m_a_m_a [10]3 years ago
6 0

Answer:

x < - 7

Step-by-step explanation:

Given

3(x - 2) > 5x + 8 ← distribute parenthesis on left side

3x - 6 > 5x + 8 ( subtract 3x from both sides )

- 6 > 2x + 8 ( subtract 8 from both sides )

- 14 > 2x ( divide both sides by 2 )

- 7 > x, hence

x < - 7

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I need help with this math problem! Thanks!<br><br> -8 = -( x +4)
Damm [24]

Answer:

x = 4

Step-by-step explanation:

If the lonely negative sign infront of the brackets is confusing, it can be rewritten as -1.

To solve, simplify by expanding then isolate x.

-8 = -( x +4)

-8 = -1 ( x +4)       Distribute over brackets by changing the each term's sign

-8 = -x - 4            Start isolating x by moving everything to the other side

-8 +4  = -x -4 + 4        Add 4 to both sides so it cancels out on the right

-4  = -x

-4  = -1x           <= -x is the same at -1x

-4/-1  = -x/-1     <=divide both sides by negative 1

4 = x

x = 4      <= usually we write the variable on the left side

7 0
3 years ago
What is the solution of the system? Use substitution.
Illusion [34]
B. I don't If it help
3 0
3 years ago
Which expression is equivalent to 7^3 x 7^-5?
slavikrds [6]

When multiply terms with exponents, simply add the exponents.

7^{3} * 7^{-5} = 7^{-2} = \frac{1}{7^{2}}

Hope this helps!

8 0
2 years ago
Read 2 more answers
Jacob earns $7.25 an hour at his part-time job, and earns $9 each time he mows the lawn for his mother. He graphs the amount of
olchik [2.2K]

Answer: $7.25 at part-time job

$9.00 every time lawn mowed

so he would get 33.33 day so we will just say 33 times to get 300 dollars if he gets $9 for mowing. And 41.37 hours to get $300 and he would have to use x and y graph to find the boundary line.

Step-by-step explanation:

7 0
2 years ago
Please help, At a festival 2/7th of the number of girls was equal to 3/5th of the number of boys.
fenix001 [56]

Answer:

465

Step-by-step explanation:

Let the number of girls at the festival be--------- g

Let the number of boys at the festival be---------b

The conditions are;

2/7 g = 3/5 b ---------------(i)

g-b= 165 ---------------------(ii)---------make g the subject of the expression

g= 165 +b---------------------(iii)--------use this equation in (i)

2/7 (165 +b)= 3/5 b -------multiply both sides by 7

7*2/7(165+b) =3/5*7 b

2(165+b)=21/5 b ------multiply both sides by 5

5*2(165+b) = 21/5*5*b

10(165+b) = 21 b -------open brackets

1650 +10 b = 21 b------collect like terms

1650 = 21 b- 10 b

1650 = 11 b -----divide both sides by 11

1650/11 = 11b/11

150 = b = number of boys

Using equation (ii) where g-b =165  ;  g-150 =165 , g= 165+150 =315 number of girls

Total number of children at the festival = 150+315 =465

7 0
3 years ago
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