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inessss [21]
3 years ago
11

-28+4x=4(x-7) how many solutions marking brainlest

Mathematics
2 answers:
Stolb23 [73]3 years ago
8 0

Answer:

All real numbers are solutions.

Step-by-step explanation:

Let's solve your equation step-by-step.

−28+4x=4(x−7)

Step 1: Simplify both sides of the equation.

−28+4x=4(x−7)

−28+4x=(4)(x)+(4)(−7)(Distribute)

−28+4x=4x+−28

4x−28=4x−28

Step 2: Subtract 4x from both sides.

4x−28−4x=4x−28−4x

−28=−28

Step 3: Add 28 to both sides.

−28+28=−28+28

0=0

Answer:

All real numbers are solutions.

<3

Damm [24]3 years ago
5 0

Answer:

x^2 + 5 x + =0

Step-by-step explanation:

We need to factor this trinomial by grouping.

The first step in this process consists of splitting the middle term into two terms.

In our example, 5x  has been split into 2x and .

Notice that one common factor can be factored from the first 2 terms, and another from the second 2 terms

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HELP ME A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she take
Sidana [21]

Answer:

C. 5 Red marbles

Step-by-step explanation:

If she started with 5 red marbles and had a probability of 1/5 of drawing a red marble, then there were 20 blue marbles, and 25 total marbles.

   5/25 = 1/5

If she added 5 red marbles, she now would have 10 red marbles and still 20 blue marbles, giving her 30 total marbles in the bag.

  10/30 = 1/3, so C is the right answer.  

You can rule out other choices by repeating the above steps and substituting appropriate values

7 0
3 years ago
Two-thirds of the algebra students took the h s a the first time. if 60 students took the algebra h s a how many algebra student
Sav [38]
Divide 60 by 2/3 to find the class total.


= 60 ÷ 2/3
to divide fractions, multiply by reciprocal of 2/3

= 60 * 3/2
multiply numerators

= (60 * 3)/2

= 180/2

= 90 total students


CHECK
= 90 total * 2/3
= (90*2)/3
= 180/3
= 60 which is 2/3 of class


ANSWER: There are 90 total students

Hope this helps! :)
4 0
3 years ago
Read 2 more answers
1. How many small squares are in Step 10?
Alex787 [66]

Answer:

110 squares

Step-by-step explanation:

= 10 x 11

= 110 small squares.

From the question,

Step one : • • = 1(2) small squares

Step two : • • • = 3 squares in two layers = 2(3) = 6 small squares

• • •

Step three : • • • • = 4 squares in 3 layers = 3(4) = 12 small squares

• • • •

• • • •

7 0
2 years ago
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victus00 [196]
If you translate it I can help u
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They make 490 buttons in 3.5 hours how many did they make in an hour
bekas [8.4K]
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