1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
borishaifa [10]
3 years ago
15

What is -2(4g-3)=30 I can't figure it out so I need so help

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0

-2(4g-3)=30

Multiply the bracket by -2

(-2)(4g)=-8g

(-2)(-3)=6

-8g+6=30

Move +6 to the other side. Sign changes from +6 to -6.

-8g+6-6=30-6

-8g=30-6

-8g=24

Divide both sides by -8

-8g/-8=24/-8

Cross out 8 and 8, divide by 8 and then becomes 1*1*g=g

g=24/-8

Answer: g=-3

timofeeve [1]3 years ago
4 0

Answer:

g =  - 3

Step-by-step explanation:

- 2(4g - 3) = 30

- 8g + 6 = 30

- 8g + 6 - 6 = 30 - 6

- 8g = 24

\frac{ - 8g}{ - 8}  =  \frac{24}{ - 8}

g =  - 3

You might be interested in
Mixed number fraction 7 1/5+3 2/5
andrezito [222]

Answer: 10 3/5

Step-by-step explanation: 7+3 = 10

1+2=3

keep donomin

8 0
3 years ago
Read 2 more answers
What is undefined <br> I need help I don't understand this question
timurjin [86]
(4/9-9) and (4/0) are undefined as you can not divide by the value of 0.
4 0
3 years ago
I will give brainliest.........................Please explain please..........................
Ahat [919]
<h3>Answer:  Profit = 6.40 dollars</h3>

======================================================

Explanation:

Plug x = 80 into the equation to get

y = 0.12x

y = 0.12*80

y = 9.60

This means the store paid $9.60 for the rope. This amount of money is leaving the store owner's wallet or bank account. We'll keep this in mind for later.

-------------------

The graph shows the equation y = 0.20x

Note how the point (1, 0.20) is on the line to help see the slope right away. This trick only works when the line goes through the origin.

You could also use the slope formula to get this. The y intercept is 0 since the line goes through the origin.

This equation and graph show that the price per foot is $0.20, or it's 20 cents per foot.

Plug in x = 80 to find how much the store will make in revenue

y = 0.20x

y = 0.20*80

y = 16

The store makes $16 in revenue when it sells 80 ft of rope.

----------------------

The cost to the store was $9.60 found in the first section. The revenue was $16 found in section 2.

So,

profit = revenue - cost

profit = 16 - 9.60

profit = 6.40 dollars

6 0
2 years ago
at the beach, the cost for a surf board is 39 dollars for 3 hrs. at this rate what will be the charge in 8 hrs.
prohojiy [21]

Answer:

$104

Step-by-step explanation:

So, in one hour it would cost $13. Times 8, because we want to see what would be the cost for 8 hours, and 8 times 13 is 104.

8 0
3 years ago
Read 2 more answers
Given the equation 4x2 − 8x 20 = 0, what are the values of h and k when the equation is written in vertex form a(x − h)2 k = 0?
Westkost [7]

The vertex form of the given quadratic equation is

4(x-1)^{2} + 16 =0.

According to the given question.

We have a quadratic equation

4x^{2} -8x + 20 = 0

Since, for the standard quadratic form is ax^{2} +bx + c = y, the vertex form of a quadratic equation is y = a(x -h)^{2} + k where (h, k) is the vertex.    

And h and k can be calculated as

h = -b/2a and y = k

So, for the given equation 4x^{2} -8x + 20 =0 the vertex (h, k) is given by

h = -(-8)/2(4) = 8/8 = 1   (X coordinate of vertex)

and,

y =4x^{2} -8x+ 20

substitute x = 1 in the above equation for the value of k

Y = 4(1)(1) - 8(1) + 20

⇒ Y = 4 - 8 + 20

⇒ Y = -4 + 20

⇒ Y = 16

so, k = 16          (Y coordinate of vertex)

Now, substitute the value of a, k and h in y = a(x-h)^{2} + k.

⇒  0 =4(x-1)^{2} + 16

Therefore, the vertex form of the given quadratic equation is

4(x-1)^{2} + 16 =0.

Find out more information about vertex form of a quadratic equation here:

brainly.com/question/12223454

#SPJ4

6 0
2 years ago
Other questions:
  • What does the expression represent
    5·2 answers
  • Multiply. 1 2/9 1 4/5
    13·2 answers
  • Find the value of n. 4 × 62 = (4 x n) + (4 × 2)
    12·2 answers
  • You’ve seen how a polygon can reflect onto itself during a transformation. use what you know about symmetry to describe the line
    13·2 answers
  • How can i solve for x &amp; y <br> -14 - 3i = 2 x + yi
    11·1 answer
  • Can someone help me
    13·1 answer
  • A sign language club made $627.50 from selling popcorn at a festival. The popcorn cost the club $95.00. Which expression represe
    13·2 answers
  • What is the answer to 5/9 + 2/9? Lol please help me
    10·2 answers
  • Which best explains whether a triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle? the triangle is acute bec
    9·2 answers
  • Which expression is equivalent to
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!