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
Kay [80]
2 years ago
13

What does 9a-2=12+2a​

Mathematics
1 answer:
Paraphin [41]2 years ago
4 0

Answer:

a=2

Step-by-step explanation:

Subtract 2a from both sides.

9a−2−2a=12

Combine 9a and −2a to get 7a.

7a−2=12

Add 2 to both sides.

7a=12+2

Add 12 and 2 to get 14.

7a=14

Divide both sides by 7.

a=\frac{14}{7}

Divide 14 by 7 to get 2.

a=2

You might be interested in
You are a young entrepreneur who ventures into selling milk tea. On the soft opening day, you sold all 50 glasses of classic and
shutvik [7]

Answer:

35 glasses of classic milk tea

15 glasses of flavored milk tea

Step-by-step explanation:

You sold 50 glasses of classic and flavored milk tea.

c + f = 50

You made 4700 when classic tea costs 100 and flavored tea costs 80.

100c + 80f = 4700

Use this system of equation to solve.  Use substitution.  Rearrange the first equation so that it is equal to c.  Then, plug the c-value into the second equation.

c + f = 50

c = 50 - f

100c + 80f = 4700

100(50 - f) + 80f = 4700

5000 - 100f + 80f = 4700

5000 - 20f = 4700

-20f = -300

f = 15

Plug the f-value into one of the equations and solve for c.

c + f = 50

c + 15 = 50

c = 35

35 glasses of classic milk tea and 15 glasses of flavored milk tea were sold.

4 0
3 years ago
Solve (x – 3)2 = 49. Select the values of x.
PIT_PIT [208]

Answer:

<h3>x = 27.5</h3>

Step-by-step explanation:

(x - 3)2 = 49 \\  \frac{(x - 3)2}{2}  =  \frac{49}{2}  \\ x - 3 = 24.5 \\ x - 3 + 3 = 24.5 + 3 \\ x = 27.5 \\

6 0
2 years ago
Read 2 more answers
Jada walks up to a tank of water that can hold up to 10 gallons. When it is active, a drain empties
Romashka-Z-Leto [24]

Answer:

3 minutes and 30 seconds

Step-by-step explanation:

7-5 = 2

3/2 = 1.5 gallons that empty per each minute

1.5 times 3 (minutes) = 4.5 gallons emptied

Remaining gallons to empty = 0.5

0.5 gallons to empty will take 30 seconds

I hope this helps :)

8 0
3 years ago
Find the surface area of the triangular prism shown below. Plz I really need help right now I know if you have the wrong answer.
7nadin3 [17]

Answer:

Step-by-step explanation:

A triangular prism is a prism that has two triangular faces and three rectangular sides.

The area of the rectangular sides is A = lbh

A = area, l = length, and h = height.

The area of the triangular faces is A = 1/2bh

A = area, b = base, and h = height.

7 0
3 years ago
-2/5 x -1 1/4 <br> A) -1 1/10<br> B) -1/2<br> C) 1 1/10<br> D) 1/2
Harrizon [31]
The answer would be C b/c negative 2 times 11 is positive 22 and 2negatives equal a positive and then negative 5 times 4 equal 20 it would be 22/20 divide be top and bottom by 2 and you get your answer .
4 0
3 years ago
Other questions:
  • Round 392,153 ti the nearest hundred thousand.
    12·1 answer
  • How to simplify fully
    14·1 answer
  • What are the possible values of x in 32x + 20 = 28x − 16x2?
    9·2 answers
  • How are (3x)^2 and 3x^2 different?
    15·2 answers
  • I need help on this equation, I tried multiplying but it didn’t work.
    7·1 answer
  • The hour hand of a clock is 3 feet long. How many feet does
    15·1 answer
  • Round 10,998 to nearest ten
    13·2 answers
  • Please help me out with this question, I tried it but I think its wrong
    10·1 answer
  • Explain what the slope and intercept mean in the situation.
    7·1 answer
  • Write and solve the inequality.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!