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
Tom [10]
3 years ago
6

Explain in words, how you to find a solution for the following equation. 7 + x = 18

Mathematics
2 answers:
zheka24 [161]3 years ago
7 0

Answer:

x=11 (read below)

Step-by-step explanation:

7 + x = 18

<em>Subtract 7 from both sides</em>

x=11

It's quite simple because if you do something to one side of the equation, you need to do it to the other because otherwise the equation won't be equal. This is how you need to simplify most problems, by taking something from one side and taking from the other as well.

ad-work [718]3 years ago
4 0
11 is your answer
hope this helps !!
You might be interested in
Drag equations to each row to show why the equation of a straight line is y = 3x, where 3 is the slope.
a_sh-v [17]

y/x = 3/1   Triangle 1 is similar to triangle 3

y = 3 x     Multiply each side by x

4 0
3 years ago
Read 2 more answers
Which of the following is a perfect square trinomial?
yanalaym [24]
Your answer is D. 16x² - 56xy + 49y².

A perfect square trinomial is the result of a squared binomial, like (a + b)². Using this example, the perfect square trinomial would be a² + 2ab + b², as that is what you get when you expand the brackets.

Therefore, to determine which of these is a perfect square trinomial, we have to see if it can be factorised into the form (a + b)².

I did this by first square rooting the 16x² and 49y² to get 4x and 7y as our two terms in the brackets. We automatically know the answer isn't A or B as you cannot have a negative square number.

Now that we know the brackets are (4x + 7y)², we can expand to find out what the middle term is, so:

(4x + 7y)(4x + 7y)
= 16x² + (7y × 4x) + (7y × 4x) + 49y²
= 16x² + 28xy + 28xy + 49y²
= 16x² + 56xy + 49y².

So we know that the middle number is 56xy. Now we assumed that it was (4x + 7y)², but the same 16x² and 49y² can also be formed by (4x - 7y)², and expanding this bracket turns the +56xy into -56xy, forming option D, 16x² - 56xy + 49y².

I hope this helps!
6 0
3 years ago
Read 2 more answers
Solve the following system: (5 points)
dusya [7]
(4,7) because 3•4 = 12 and 12+7 = 19
3 0
3 years ago
Which represents a quadratic function?
stiks02 [169]
F(x)=x2 + 2x - 5 represents a quadratic function
6 0
3 years ago
Help please, i will mark brainliest
dmitriy555 [2]

Answer:

40

Step-by-step explanation:

We can see that at 1 minute there is 40 beats, at 2 minutes there is 80 beats, at 3 minutes there is 120 beats, at 4 minutes there is 160 beats and at 5 minutes there is 200 beats. If we divide each of the beats by its corresponding minute we will get 40

40 beats at 1 minute → 40 ÷ 1 = 40

80 beats at 2 minutes → 80 ÷ 2 = 40

120 beats at 3 minutes → 120 ÷ 3 = 40

160 beats at 4 minutes → 160 ÷ 4 = 40

200 beats at 5 minutes → 200 ÷ 5 = 40

3 0
3 years ago
Other questions:
  • Stella is renting a car for a business trip. The car rental agency charges a flat rate of $60 plus $0.50 per mile for every mile
    12·1 answer
  • If a 12.4 centimeter cloth is cut into 3.1 inch ribbons, how many ribbons will there be?
    11·1 answer
  • rudy will buy 3 ivory silk lilac trees or 2 bur oak trees he wants to buy the trees that cost less wgat trees will hey buy how m
    7·2 answers
  • What is a verbal expression for w- 1
    12·1 answer
  • What is the greatest common factor of 42 70 and 84
    6·1 answer
  • PLEASEEE HELPP SOMEONE WITH PART C ONLY WITH EXPLANATION THANK YOU!!!
    8·1 answer
  • Pls help!!!!!!!!!!!!!
    6·1 answer
  • What is the value of the expression?
    7·1 answer
  • The figure shows three quadrilaterals on a coordinate grid:
    11·1 answer
  • Each large rectangle below represents one whole.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!