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
Arada [10]
3 years ago
9

Anyone know the answer???

Mathematics
1 answer:
Umnica [9.8K]3 years ago
8 0

Answer:

k = 10

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the opposite interior angles

115 = (4k+5) + (6k+10)

Combine like terms

115 = 10k+15

Subtract 15 from each side

115-15 = 10k +15-15

100 = 10k

Divide by 10

100/10 = 10k/10

10 =k

You might be interested in
P URGENT I've got a timer going on but really need your help to answer this thank you!!
astraxan [27]

Given:

The radius of inner circle = 13 yd.

The width of the shaded region = 8 yd

To find the area of the shaded region.

Now,

The radius of the outer circle = 13+8 yd = 21 yd

Formula

The area of a circle of radius r unit is \pi r^{2} sq unit.

A = A_{1}-A_{2}

where, A = The area of the shaded region

A_{1} = Area of the outer region

A_{2}= Area of the inner region

Now,

A_{1}= \pi (21^{2})

A_{1} = (3.14)(21)(21)

A_{1}= 1384.74 sq yd

And,

A_{2} = \pi (13^{2})

A_{2} = (3.14)(13)(13)

A_{2}= 530.66 sq yd

Therefore,

A = 1384.74-530.66 sq yd

A = 854.08 sq yd

Hence,

The area of the shaded region 854.08 sq yd.

7 0
3 years ago
What would the answer be to 1/2+1/8-1/4
Inga [223]
The answer for that equation will be 0.375.
5 0
3 years ago
Read 2 more answers
100 points + brainiest
Scrat [10]

Answer:

  • 35 grams of 11.43% solution

Step-by-step explanation:

The end solution has same volume as initial volumes of mixture.

  • 10 + 25 = 35 g

The concentration of solution is calculated as below

  • 10*0.15 + 25*0.1 = 4 g
  • 4 / 35*100% = 11.43% (rounded)

6 0
2 years ago
Consider △RST and △RYX.
astra-53 [7]

Answer:

B. StartFraction R Y Over R S EndFraction = StartFraction R X Over R T EndFraction = StartFraction X Y Over T S EndFraction

i.e \frac{RY}{RS} = \frac{RX}{RT} = \frac{XY}{TS}

Step-by-step explanation:

Two or more shape or figures are similar when their sides and angles can be compared appropriately.

In the given figure, ΔRXY is within ΔRST. Since the two triangles are similar, then their length of sides can be compared in the form of required ratios.

So that by comparison,

\frac{RY}{RS} = \frac{RX}{RT} = \frac{XY}{TS}

Therefore, the correct option to the question is B.

8 0
2 years ago
Read 2 more answers
Which measure is a measure of center?
jok3333 [9.3K]
The Measures of Centrality are:
Mode, Median and Mean

From your list of answers therefore, it is the "mode".
6 0
4 years ago
Read 2 more answers
Other questions:
  • Solve by using substitution<br>-4x+y=6   and   -5x-y=21  
    11·2 answers
  • Is 14 quarter inches the most common measurement
    15·1 answer
  • Help me people. Please
    14·2 answers
  • 3 divided by 3 over 4
    12·1 answer
  • 4 ants are standing on a plane Ant A stands at (1,0) B at (0,1) C(-1,0) D at (0,-1) They all start walking to the next ant in al
    9·1 answer
  • What is the answer for -5(3x-9)=2(x-63)-33?
    10·1 answer
  • Help please I dont understand this​
    9·1 answer
  • Pls help due in a few minutes
    10·1 answer
  • 9 + a = 113<br> find the solution
    5·1 answer
  • 25 points each!!!!!!!!!!!!!!<br><br> Hint: It isn't D
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!