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
Svet_ta [14]
3 years ago
6

PLSS HELP IF YOU TURLY KNOW THISS

Mathematics
2 answers:
yaroslaw [1]3 years ago
6 0

Answer:

x = 11

Step-by-step explanation:

(0.3x - 2.1)/3 = 0.4

0.3x - 2.1 = 0.4 * 3

0.3x - 2.1 = 1.2

0.3x = 1.2 + 2.1

0.3x = 3.3

x = 3.3/0.3

x = 11

kenny6666 [7]3 years ago
6 0

Answer:

\frac{0.3x - 2.1}{3}  = 0.4 \\ 0.3x - 2.1 = 0.4 \times 3 \\ 0.3x - 2.1 = 1.2 \\ 0.3x = 1.2 + 2.1 \\ 0.3x = 3.3 \\ x =  \frac{3.3}{0.3}  \\  \boxed{x = 11}

  • <u>x = 11</u> is the right answer.
You might be interested in
If an object weighs 120 pounds on earth how much will it way on mars
butalik [34]
The surface gravity of Mars is 3.7 m/s².  On Earth it is 9.8 m/s².  3.7/9.8 = 38%.

So 38% of 120 lbs is 45 pounds.
 
8 0
3 years ago
Please help!<br> This is mathematics!
Elanso [62]

Answer:

30, 30, 32, 32, 34, 38, 38, 38. Thats how you first need to set it up then what you do is add them all up which would equal to 272. Then you take 272 dived by how many numbers there are (theres 8 numbers) so you do 272/8 which would be 34! So 34 would be your answer.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The life spans, in years, of some plants in a nursery are shown below:
yKpoI14uk [10]

Jack incorrect plotted the third quartile.

Explanation:

7 0
2 years ago
Read 2 more answers
Suppose the average math SAT score for students enrolled at local community college is 490.4 with a standard deviation of 63.7.
lakkis [162]

Answer:

Option B) 9.1      

Step-by-step explanation:

We are given the following in the question:

Average score = 490.4

Standard deviation = 63.7

Sample size, n = 49

Formula:

=\dfrac{\sigma}{\sqrt{n}}

Putting values, we get,

Standard error =

=\dfrac{\sigma}{\sqrt{n}} = \dfrac{63.7}{\sqrt{49}} = 9.1

Thus, the correct answer is

Option B) 9.1

8 0
2 years ago
Solve this inequality: 8z + 3 – 2z &lt; 51
MArishka [77]
8z +3 - 2z < 51
6z + 3 < 51
-3. -3
6z < 48
-- ---
6. 6

z<8
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which answer explains one way that the length of this line segment can be determined?
    13·2 answers
  • Its a math problem that I need help with.
    13·2 answers
  • If AD = 2/3 AB , what is the ratio of the length of arc BC to the length of arc DE
    5·2 answers
  • Helpppppppppppppppppp
    12·1 answer
  • adam bought a box of fruit that weighed 6 3/8 kilograms. If he bought a second box that weighed 7 25 kilograms, what is the comb
    15·1 answer
  • Write the slope-intercept form of the equation for
    11·1 answer
  • Leo wants to determine the average number of texts middle school students send in a day. Since all middle school students are en
    6·2 answers
  • I need a answer soon please!
    15·1 answer
  • 9y-7=56 y=?: show work
    11·2 answers
  • Choose the item that does NOT have a measurable volume. Air, a water bottle, a box of crackers, a dollar bill
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!