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
alex41 [277]
2 years ago
10

Translate to words : 5(x+3)-6+7x​

Mathematics
2 answers:
Llana [10]2 years ago
7 0

Answer:

five time in parenthesis x plus three close parenthesis minus six plus seven x

Step-by-step explanation:

five time in parenthesis x plus three close parenthesis minus six plus seven x

UkoKoshka [18]2 years ago
6 0
5x+15-6+7x
15-6= 9.
5=7= 12
12x+9 .
You might be interested in
Describe and correct the error(s) made in each of the problems below.
ladessa [460]

Answer:

\displaystyle \frac{1-x}{(5-x)(-x)} =-\frac{x-1 }{ x(x-5)}

\displaystyle \frac{5}{s}\times \frac{2}{5} =\frac{2}{s}

Step-by-step explanation:

<u>Errors in Algebraic Operations </u>

It's usual that students make mistakes when misunderstanding the application of algebra's basic rules. Here we have two of them

  • When we change the signs of all the terms of a polynomial, the expression must be preceded by a negative sign
  • When multiplying negative and positive quantities, if the number of negatives is odd, the result is negative. If the number of negatives is even, the result is positive.
  • Not to confuse product of fractions with the sum of fractions. Rules are quite different

The first expression is

1-x / (5-x)(-x)=x-1 / x(x-5)

Let's arrange into format:

\displaystyle \frac{1-x}{(5-x)(-x)} =\frac{x-1 }{ x(x-5)}

We can clearly see in all of the factors in the expression the signs were changed correctly, but the result should have been preceeded with a negative sign, because it makes 3 (odd number) negatives, resulting in a negative expression. The correct form is

\displaystyle \frac{1-x}{(5-x)(-x)} =-\frac{x-1 }{ x(x-5)}

Now for the second expression

5/s+2/5=2/s

Let's arrange into format

\displaystyle \frac{5}{s}+\frac{2}{5} =\frac{2}{s}

It's a clear mistake because it was asssumed a product of fractions instead of a SUM of fractions. If the result was correct, then the expression should have been

\displaystyle \frac{5}{s}\times \frac{2}{5} =\frac{2}{s}

6 0
2 years ago
The science club at Jersey High School is sponsoring a dance to raise money for their spring project. They will charge $4 per st
Dennis_Churaev [7]

Answer: 195

Step-by-step explanation:

Cost per student = $4

Total number who attended = n

The cost of the total of student who attended will be cost per student multiplied by the total number of students, that is

Total cos = 4n

Since, they are to pay $140 , for publicity, then the total cost becomes

T = 4n - 140

From the last statement

4n - 140 ≥ 640

4n ≥ 640 + 140

4n ≥780

n ≥ 780/4

n ≥ 195

That means at least 195 students must attend if the science club is to earn at least $ 640

6 0
2 years ago
We want to find the zeros of this polynomial:
fredd [130]

Answer:

x = -3 and x = -3/2

Step-by-step explanation:

After writing down the polynomial, split it; put a line between 3x^2 and -18x. Look and 2x^3 + 3x^2 and -18x - 27 separately and factor them both:

p(x) = 2x^3 + 3x^2 <u>- 18x -27</u>

p(x) = x^2(2x+3) <u>-9(2x+3)</u>

Now notice how x^2 and -9 have the same factor (2x+3). That means x^2 and -9 can go together:

p(x) = (x^2 - 9)(2x+3)

Factor it once more because there's a difference of squares:

p(x) = (x+3)(x-3)(2x+3)

Now just plug in whatever makes the each bracket equal 0:

x = -3, x = 3, and x = -3/2

Those are your zeros.

8 0
2 years ago
Given that<br>F1 = 50 N<br>r1= 3 m<br>r2 = 2 m<br>The beam does not move. How large is force F2?​
Phoenix [80]

Answer:

6m

Step-by-step explanation:

If it doesn't move it's just the same force

5 0
3 years ago
Which ordered pair is the best estimate for the solution to the system
Vera_Pavlovna [14]

Answer:

The best estimate of the solution ordered pair from the graph is (\frac{1}{2},0).

Step-by-step explanation:

See the attached graph to this question.

The graph of two straight lines are shown in the graph.

Now, the two straight lines intersect on the x-axis, so the solution ordered pairs should have y-value equals to zero.

But, there are two ordered pairs with y-value zero and they are (\frac{1}{2},0) and (\frac{1}{3},0).

The best estimate of the solution ordered pairs from the graph is (\frac{1}{2},0).

So, this is the solution. (Answer)

7 0
2 years ago
Other questions:
  • Let E be the event that a corn crop has an infestation of ear worms, and let B be the event that a corn crop has an infestation
    12·1 answer
  • Need help with compound fractions. Please answer both
    15·1 answer
  • What is the surface area of the cone.? <br> Slant height:12mm<br> Radius:3mm
    8·1 answer
  • Multiply. Simplify your answer and write it as a proper fraction or as a whole or mixed number.
    9·2 answers
  • How could Jason solve for T in this equation? T - 8 = 40 A) add 8 to the left side B) add 8 to the left side and subtract 8 from
    7·1 answer
  • Describe in words the region of double-struck R3 represented by the inequality. 0 ≤ z ≤ 7 The inequality 0 ≤ z ≤ 7 represents al
    8·1 answer
  • (-2/5)7÷(-2/5)5=????
    14·2 answers
  • Simplify the expression show steps
    7·1 answer
  • Becky lives 5 3/4 miles from school this is 2/5 of the distance she lives from the beach how many miles does Becky live from the
    11·1 answer
  • Kyra was at soccer practice. she blocked 55% of the goals that were kicked at her during a team drill. ashley scored two of the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!