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
UkoKoshka [18]
2 years ago
9

12. Write and solve the equation modeled below

Mathematics
1 answer:
Tanzania [10]2 years ago
5 0
The scale shows that both sides are equal to each other so you get 3x-2=4 then you simply solve for X
3x=6 and finally you get x=2

Hope this helps
You might be interested in
A car dealership's goal is to sell a mean of 25 cars per day. In one week, it sold the following numbers of cars each day:
LUCKY_DIMON [66]

Answer:

35 more cars

Step-by-step explanation:

17, 14, 19, 21, 27, 22, 20 add all of these numbers together

= 140

140 / 7 (number of days) = 20

25 x 7= 175

175 - 140 =35

8 0
3 years ago
Read 2 more answers
A train leaves Philadelphia at 2:00 PM. A second train leaves the same city in the same direction at 4:00 PM. The second train t
polet [3.4K]

Answer: First train speed shall be 42 mi/hr

Second train speed shall be 84 mi/hr

Yes it is the valid answer, it gets annoying when almost everyone enters the wrong answer for a good laugh. Either way, hope this helps! Have a spectacular day.

Step-by-step explanation:

What is the 1st train's head start in miles?

Let +s+ = the speed of the 1st train in mi/hr

From 2PM to 4PM is 2 hrs

+d%5B1%5D+=+s%2A2+

---------------------

Let +d+ = distance the 2nd train travels until

it overtakes the 1st train

From 4PM to 6PM is 2 hrs

Start time when the 2nd train leaves

---------------------

Equation for 1st train:

(1) +d+-+2s+=+s%2A2+

Equation for 2nd train:

(2) +d+=+%28+s%2B42+%29%2A2+

--------------------

Substitute (2) into (1)

(1) +%28+s%2B42+%29%2A2+-+2s+=+s%2A2+

(1) +2s+%2B+84+-+2s+=+2s+

(1) +2s+=+84+

(1) +s+=+42+

and

+s%2B+42+=+42+%2B+42+

+s+%2B+42+=+84+

------------------

The 1st train's speed is 42 mi/hr

The 2nd train's speed is 84 mi/hr

---------------------------

check:

(2) +d+=+%28+s%2B42+%29%2A2+

(2) +d+=84%2A2+

(2) +d+=+168+

and

(1) +d+-+2s+=+s%2A2+

(1) +d+-+2%2A42+=+42%2A2+

(1) +d+=+84+%2B+84+

(1) +d+=+168+

8 0
2 years ago
Michael and Kathryn bowl together and their combined total score for one game was 425points. Michael’s score was 70 less than tw
In-s [12.5K]

Hey there!

Let us take Michael's score as ' x '

Let us take Kathryn's score as ' y '

Michael - 70 less than twice Kathryn's


x = 2y - 70

y = y

Add them, we get , 425

2y - 70 + y = 425

3y - 70 = 425

3y = 495

y = 495/3

y = 165

Kathryn's score = 165

Michael - 2 ( 165 ) - 70

= 260

Hope it helps!

7 0
3 years ago
What value of x makes the equation 1/9x+6=8 true
Mademuasel [1]

Answer:

18

Step-by-step explanation:

Subtract 6 from both sides so the equation becomes 1/9x=2. Multiply by the reciprocal on both sides (9)1/9x=2(9).

This cancels out to x=18

6 0
3 years ago
The Sanders family and the Wright family each used their sprinklers last summer. The Sanders family's sprinkler was used for 20
Artemon [7]
Sent a picture of the solution to the problem (s).

3 0
3 years ago
Other questions:
  • What is 1/6-5/8 can you please answer this
    15·2 answers
  • State the negation of the following statement: Lines a and b are parallel.
    12·2 answers
  • Using the linear equation 4x–3y=12, express:
    6·1 answer
  • there are 30 students in Sam's history class. out of that number, 18 are girls. If one student is absent, what is the probabilit
    7·2 answers
  • The figure is made up of a cylinder and a cone.<br><br> What is the exact volume of the figure?
    8·2 answers
  • -2(3+-4+-8+7) solve using distribution
    8·2 answers
  • Reduce 1.256 g to micrograms, to milligrams, and to kilograms.
    12·1 answer
  • The square below represents one whole. Express the shaded area as a fraction, a decimal, and a percent of the whole. Fraction: D
    12·1 answer
  • Solve for x: 3 + 5x = 4x - 6
    13·2 answers
  • A square has a perimeter of 60ft what is the length of each side​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!