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
Sophie [7]
3 years ago
13

Solve this please, and quick

Mathematics
2 answers:
rosijanka [135]3 years ago
8 0
Error: They subtracted 9x from both sides when they should have subtracted 12. You can’t subtract unlike terms
Correct: x=-5/16
Subtract 12 from both sides to get -5 on the left and add 7x and 9x to get 16x. Divide both sides by 16 to isolate x.
Viefleur [7K]3 years ago
3 0

Answer:

3.2

Step-by-step explanation:

7x + 12 + 9x = 7

16x + 12 = 7

       - 12    -12

16x = -5

16 divided by -5 is 3.2

x = 3.2

You might be interested in
87.5% , 100% , 83.33 , 93.33% , 100% , 82.5% are all the academic points I've gotten this quarter. What's my final grade?
9966 [12]

Write out your scores. ...

Write out the total possible points. ...

Add up both columns. ...

Calculate your average grade. ...

Multiply the decimal number by 100. ...

Determine your letter grade or grade point equivalent (GPA).


6 0
3 years ago
Help me idk what's the answer
Jobisdone [24]
76, 84, 93, 67, 82, 87, & 76

The mean is just the middle number of the data set,

Start by rewriting the set in order from smallest to biggest:
67, 76, 76, 82, 84, 87, 93

Determine which is the number in the middle,
67, 76, 76, *82*, 84, 87, 93

So, in this case, the median is 82.
4 0
3 years ago
Read 2 more answers
According to a recent survey of first-year high school students, 28% chew gum daily. The students were also asked if they had re
Brut [27]

Answer:

No its not since only 39% if the people who had cavitys had chewed gum regurely

Hope This Helps!!!

4 0
3 years ago
Is 8 cm larger than 3/8 inch
Hoochie [10]
Nope. 3/8 an inch is 0.9525 cm. 
7 0
2 years ago
What are the solutions to the system of equations?
bogdanovich [222]

Answer:

(0, - 3 ) and (- 1, - 5 )

Step-by-step explanation:

Given the 2 equations

y = 4x² + 6x - 3 → (1)

y = 2x - 3 → (2)

Substitute y = 4x² + 6x - 3 into (2)

4x² + 6x - 3 = 2x - 3 ( subtract 2x - 3 from both sides )

4x² + 4x = 0 ← factor out 4x from each term

4x(x + 1) = 0

Equate each factor to zero and solve for x

4x = 0 ⇒ x = 0

x + 1 = 0 ⇒ x = - 1

Substitute these values into (2) for corresponding values of y

x = 0 : y = 2(0) - 3 = 0 - 3 = - 3 ⇒ (0, - 3 )

x = - 1 : y = 2(- 1) - 3 = - 2 - 3 = - 5 ⇒ (- 1, - 5 )

5 0
2 years ago
Other questions:
  • What is the value of In e^6?
    7·2 answers
  • I need help with the bottom part.
    10·1 answer
  • What is -3x+5y=-2 2x-2y=1
    10·1 answer
  • Given the sinusoidal function, g(x) =3[sin 2(x – 90°)]-1
    13·1 answer
  • In this triangle, which of the following is true?
    7·2 answers
  • Please I need help ASAP
    7·1 answer
  • Galactic Rotation Speed. We are located about 27,000 light-years from the galactic center and we orbit the center about once eve
    6·1 answer
  • Is Water draining from a pool<br> Discrete or<br> Continuous
    7·1 answer
  • One angle of an isosceles triangle measures 120°. Which other angles could be in that
    12·1 answer
  • (problems 14-16 are already solved!)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!