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
spin [16.1K]
1 year ago
8

Please look at the attachment and answer my question :(

Mathematics
2 answers:
pshichka [43]1 year ago
8 0

Answer:

  • The number at B is 10.6

Step-by-step explanation:

Let the number at B be x.

We know that distance between two points on the number line is the absolute value of the difference of numbers at those points.

Then distances representing the lengths of segments AB and BC are:

  • AB = x - 9
  • BC = 13 - x

We are given the ratio of segments:

  • AB/BC = 2/3

Substitute and solve for x:

  • (x - 9)/(13 - x) = 2/3
  • 3(x - 9) = 2(13 - x)
  • 3x - 27 = 26 - 2x
  • 3x + 2x = 26 + 27
  • 5x = 53
  • x = 53/5
  • x = 10.6

dem82 [27]1 year ago
3 0

Answer:

AB / BC = 2 / 3

A equals 9 and C = 13

AC = 13 - 9 = 4

AB + BC = 13

A) AB + BC = 4

B) AB / BC = 2/3   Therefore BC = AB / (2/3)  

B) BC = 1.5 AB  

A) BC = 4 - A/B

Multiplying equation A) by -1

A) -BC = -4 + AB then we add equation B)

B) BC = 1.5 AB then adding both equations

0 = 2.5 AB -4

2.5 AB = 4

AB = 1.6

Since A = 9 then the number at B is 9 + 1.6

equals 10.6

Step-by-step explanation:

You might be interested in
What is the solution to the inequality -6+ | 2p+3 | >7?
KengaRu [80]

Answer:

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Needed help for my math please
vesna_86 [32]

Answer:

see explanation

Step-by-step explanation:

(a)

\frac{a}{a} = 1 ( any value divided by itself = 1 )

(b)

\frac{a}{1} = a ( any value divide by 1 is the value itself )

(c)

\frac{a}{b} × \frac{c}{d} = \frac{ac}{bd}

The product of 2 fractions is the product of the numerators divided by the product of the denominators

(d)

\frac{a}{b} ÷ \frac{c}{d} = \frac{ad}{bc}

To divide 2 fractions, leave the first fraction, change division to multiplication and turn the second fraction upside down, that is

\frac{a}{b} ÷ \frac{c}{d} = \frac{a}{b} × \frac{d}{c} = \frac{ad}{bc}

(e)

\frac{a}{d} + \frac{b}{d} = \frac{a+b}{d}

Since the fractions have a like denominator, add the numerators leaving the denominator. This applies to subtraction also

(f)

\frac{a}{d} - \frac{b}{d} = \frac{a-b}{d}

See explanation for part (e)




6 0
3 years ago
A bicycle went 120 miles in 5 hours. A motorcycle is three times as fast as the bicycle. Find the speed of motorcycle.
NemiM [27]
360 miles per 5 hours 5!!!!
7 0
3 years ago
Read 2 more answers
Does 30,40,45 make a right triangle?
zavuch27 [327]

I believe that it does.

8 0
3 years ago
If sin square theta = 0.75, then cos =
sergeinik [125]

Answer:

\cos\theta=\pm0.5

Step-by-step explanation:

Given:

\sin^2\theta=0.75

To find \cos\theta

Using trigonometric relations for sums and differences of squares of the ratios.

We know:

\sin^2\theta+\cos^2\theta =1

Plugging in  \sin^2\theta=0.75 in the above relation.

0.75+\cos^2\theta =1

Subtracting both sides by 0.75.

0.75+\cos^2\theta-0.75 =1-0.75

\cos^2\theta =0.25

Taking square root both sides.

\sqrt{\cos^2\theta} =\sqrt{0.25}

∴ \cos\theta=\pm0.5  (Answer)

6 0
3 years ago
Other questions:
  • It is Marcie's first turn to roll. Which ratio shows the
    5·2 answers
  • (m+2)(m+3)=(m+2)(m-2) what is the answer please 
    11·2 answers
  • In the triangle below, what is tan θ?
    5·2 answers
  • Consider the following experiment: triplets are born and the order of birth of boys and girls is recorded.
    7·2 answers
  • Can anyone heelp me<br><br><br><br><br><br><br><br> b
    14·1 answer
  • Caroline drew the blueprints of her new kitchen on a coordinate plane. The coordinates of the four corners of her square kitchen
    6·2 answers
  • How to make 18.2% in to decimal​
    10·2 answers
  • What is the equation of the line that passes through the point <br> (5,−7) and has a slope of 0?
    12·1 answer
  • I'll put this as random but you can answer it... <br> ill give yall 10 points if yall do it!
    10·2 answers
  • 5. Name the side included by <br><br> AB<br> AC<br> BC<br> none of these.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!