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
sergiy2304 [10]
2 years ago
7

7x-10x+18+2x=-5.0000

Mathematics
1 answer:
inysia [295]2 years ago
6 0

Simplifying

7x + -10x + 18 + 2x = -5

Reorder the terms:

18 + 7x + -10x + 2x = -5

Combine like terms: 7x + -10x = -3x

18 + -3x + 2x = -5

Combine like terms: -3x + 2x = -1x

18 + -1x = -5

Solving

18 + -1x = -5

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-18' to each side of the equation.

18 + -18 + -1x = -5 + -18

Combine like terms: 18 + -18 = 0

0 + -1x = -5 + -18

-1x = -5 + -18

Combine like terms: -5 + -18 = -23

-1x = -23

Divide each side by '-1'.

x = 23

Simplifying

x = 23

You might be interested in
(1) When Margaret Hamilton graduated from college with a mathematics degree in 1958, she intended to enroll in a graduate study
Anastaziya [24]

Answer:

A

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Help me class8 (surds)​
Mashcka [7]

Answer:

  • \cfrac{991\sqrt{2} }{80}

Step-by-step explanation:

For a start simplify each of the roots:

  • \sqrt{72} =\sqrt{36*2} =6\sqrt{2}
  • \sqrt{50} =\sqrt{25*2} =5\sqrt{2}
  • \sqrt{128} =\sqrt{64*2} =8\sqrt{2}
  • \sqrt{98} =\sqrt{49*2} =7\sqrt{2}

Now simplify the expression in steps:

\sqrt{72}-\cfrac{48}{\sqrt{50} }  -\cfrac{45}{\sqrt{128} }  +2\sqrt{98} =

6\sqrt{2}-\cfrac{48}{5\sqrt{2} }  -\cfrac{45}{8\sqrt{2} }  +2*7\sqrt{2} =

6\sqrt{2}-\cfrac{48*8+45*5}{5*8\sqrt{2} }  +14\sqrt{2} =

20\sqrt{2}-\cfrac{609}{40\sqrt{2} } =

20\sqrt{2}-\cfrac{609*\sqrt{2} }{40\sqrt{2} *\sqrt{2} } =

20\sqrt{2}-\cfrac{609\sqrt{2} }{40*2 } =

20\sqrt{2}-\cfrac{609\sqrt{2} }{80 } =

\sqrt{2} (20-7\cfrac{49}{80} )=

\sqrt{2} *12\cfrac{31}{80} =

\cfrac{991\sqrt{2} }{80}

3 0
2 years ago
Convert 510° from degrees to radians
vitfil [10]

Answer:

\frac{17\pi }{6}

Step-by-step explanation:

To convert from degrees to radians

radian = degree measure \frac{\pi }{180}

           = 510 × \frac{\pi }{180}

           = \frac{51\pi }{18}

           = \frac{17\pi }{6} radians

6 0
2 years ago
Read 2 more answers
First answer = brainliest
nataly862011 [7]

Answer:

120 cubic cm

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Compare the scores: a score of 75 on a test with a mean of 65 and a standard deviation of 8 and a score of 75 on a test with a m
LiRa [457]

Answer:

The Zscore for both test is the same

Step-by-step explanation:

Given that :

TEST 1:

score (x) = 75

Mean (m) = 65

Standard deviation (s) = 8

TEST 2:

score (x) = 75

Mean (m) = 70

Standard deviation (s) = 4

USING the relation to obtain the standardized score :

Zscore = (x - m) / s

TEST 1:

Zscore = (75 - 65) / 8

Zscore = 10/8

Zscore = 1.25

TEST 2:

Zscore = (75 - 70) / 4

Zscore = 5/4

Zscore = 1.25

The standardized score for both test is the same.

7 0
2 years ago
Other questions:
  • If pq=9 and qr=28, find PR
    9·1 answer
  • The equation of a circle centered at the origin is x^2+y^2=64.what is the radius of the circle?
    13·2 answers
  • HELP MATH QUESTION GEOMETRY
    10·1 answer
  • Compared to jenny sally is 7/8 as tall and may is 6/7 as tall. how manny times taller is sally than may PLEASE HELPP! THIS IS A
    11·1 answer
  • What is this, how do i solve it, what the answer
    8·1 answer
  • City Park is in the shape of a regular pentagon.Each side of the pentagon is 2/5 mile long.What is the perimeter of City Park?
    10·1 answer
  • What is the value of the expression below when w = 5?<br> 2w2 – 2w + 3
    12·1 answer
  • Guys plz help me with this question in this figure you have to find the area of rectangle plz help me to find the area of this r
    12·2 answers
  • What is -8w-4 simplified?
    11·2 answers
  • Below is a puzzle that requires algebraic thinking. Choose two numbers to fill in the white boxes in the top row. Follow the arr
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!