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
Bad White [126]
3 years ago
14

Work out the value of x when X – 20 : x + 280 simplifies to 1:4

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

Answer:

Solution for your question is X=120

jarptica [38.1K]3 years ago
3 0

Answer:

x = 120

Step-by-step explanation:

Express the ratios as equivalent fractions, that is

\frac{x-20}{x+280} = \frac{1}{4} ( cross- multiply )

4(x - 20) = x + 280

4x - 80 = x + 280 ( subtract x from both sides )

3x - 80 = 280 ( add 80 to both sides )

3x = 360 ( divide both sides by 3 )

x = 120

You might be interested in
Use f(x) = 2x-9 and g(x)=9-x^2 to evaluate g(f(3))​
Keith_Richards [23]

Answer:

g(f(3))​ = 0

Step-by-step explanation:

f(x) = 2x - 9

f(3) = 2(3) - 9

f(3) = -3

g(-3) = 9 - (-3)^2

g(-3) = 9 - 9

g(-3) = 0

8 0
3 years ago
What is the midpoint to the segment below?
shtirl [24]

Step-by-step Answer:

The coordinates of the mid-point of a segment whose end-points are known is the average of the coordinates of the end-points.

Here, the end-points are: (-11,0), (9,-1)

So the x-coordinate of the mid-point is (-11+9)/2 = (-2/2) = -1, and

the y-coordinate of the mid-point is (0-1)/2 = -0.5

So the mid-point is (-1,-0.5)

Check the numbers by plotting the point on the graph!

3 0
4 years ago
How do you write 4.83 as a fraction?
ikadub [295]

Answer:

4 5/6 (the last option)

Step-by-step explanation:

to ensure and find out you can dive 5/6 then add 4 and you get 4.833333333333

8 0
4 years ago
Read 2 more answers
20 POINTS!!! BRAINLEST IF CORRECT
KiRa [710]
The correct answer is y=(2/3)x+5.
7 0
3 years ago
Read 2 more answers
What is the answer? And how do I Solve, you get brainiest if you show steps clearly.
scoundrel [369]

Step-by-step explanation:

solution,

given

DF = 42

DE = 7x+1

EF = 4x-3

DE = ?

here,

or, DF = DE +EF

or, 42 = 7x+1+4x-3

or, 42 = 11x-2

or, 42+2 = 11x

or, 44/11 = x

or, 4 = x

then,

replacing value of x in DE

DE = 7x+1

= 7*4+1

= 28+1

= 29

4 0
4 years ago
Other questions:
  • I chemistry class Andrew has earned scores 64 69 73 on three test. He must maintain an average of 70 to pass the course. What sc
    14·2 answers
  • How many square inches are needed to cover a square foot
    12·2 answers
  • in the calculations shown, what will the units of the final answer be? 18 meters/second x 3600 secons/1 hour x 1 mile/ 1609meter
    12·1 answer
  • 256,892 to tens of thousands place
    7·1 answer
  • During his hockey career, Gordie Howe played 1,767 NHL regular season games, scoring 801 goals and making 1,049 assists. If goal
    9·2 answers
  • If a +b =1 and a-b = 7, find the values of : 1) 5(a^2 +b^2) ii) ab​
    8·1 answer
  • Solve the system using multiplication for the linear combination method.
    15·1 answer
  • BRAINIEST TO WHOEVER RIGHT
    5·2 answers
  • How many solutions does this equation have?<br> -6t = 3 – 5t
    10·1 answer
  • In a certain​ distribution, the mean is with a standard deviation of . At least what fraction of the numbers are between the fol
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!