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
lara [203]
2 years ago
15

Find the value of a answers: a:15 b:14 c:19 d:16

Mathematics
2 answers:
Paul [167]2 years ago
5 0

Answer:

6a+10= 3a+55

6a-3a= 55-10

3a= 45

a= 45/3

a= 15

The answer is (A) 15

Hope this helps^°^

Alborosie2 years ago
3 0

Answer:

A. 15

Step-by-step explanation:

The angles are vertical angles, therefore they are congruent. We can set the two measures equal to each other.

6a+10=3a+55

Now, solve for a. We must get a by itself on one side of the equation.

First, subtract 3a from both sides of the equation.

6a-3a+10=3a-3a+55

(6a-3a)+10=55

3a+10=55

Next, subtraction 10 to both sides of the equation. We subtract because 10 is being added to 3a. The inverse of addition is subtraction.

3a+10-10=55-10

3a=55-10

3a=45

3 and a are being multiplied. The inverse of multiplication is division. Divide both sides of the equation by 3

3a/3=45/3

a=45/3

a=15

The value of a is 15 and choice A is correct.

You might be interested in
WILL MARK BRAINLIEST
notka56 [123]

22 (what number is in the middle one you put it in ascending order)

18 (the first quartile is the first quarter of the sorted list)

23 (the third quarter, the number in between the last number and the median)

5 (the range between quartile 1 and quartile 3)

Have a great day <3

8 0
2 years ago
How to solve this problem step by step. Make brainliest answer if its done. Please
sladkih [1.3K]

D is halfway between A and B

so the coordinates of D are (2,2)

E is halfway between A and C so the coordinates of E are (-1,1)

now you need to find the gradient/slope of DE and BC using the formula:

\frac{y2 - y1}{x2 - x1}

<h3><u>G</u><u>r</u><u>a</u><u>d</u><u>i</u><u>e</u><u>n</u><u>t</u><u> </u><u>o</u><u>f</u><u> </u><u>D</u><u>E</u><u>:</u><u> </u></h3>

SUB IN COORDINATES OF D AND E

\frac{1 - 2}{ - 1 - 2}

therefore the gradient of DE is 1/3.

<h3><u>G</u><u>r</u><u>a</u><u>d</u><u>i</u><u>e</u><u>n</u><u>t</u><u> </u><u>o</u><u>f</u><u> </u><u>B</u><u>C</u><u>:</u></h3>

<em>S</em><em>U</em><em>B</em><em> </em><em>I</em><em>N</em><em> </em><em>C</em><em>O</em><em>O</em><em>R</em><em>D</em><em>I</em><em>N</em><em>A</em><em>T</em><em>E</em><em>S</em><em> </em><em>O</em><em>F</em><em> </em><em>B</em><em> </em><em>A</em><em>N</em><em>D</em><em> </em><em>C</em>

<em>\frac{ - 2 - 0}{ - 3 - 3}</em>

therefore the gradient of BC is -2/-6 which simplifies to 1/3.

<h3>therefore, BC and DE are parallel as they both have a gradient/slope of 1/3 and parallel lines have the same gradient</h3>

6 0
3 years ago
Three cunces of cinnamon cost $2.40 if there are 16 ounces in 1 pound how much does cinamon cost per pound
kvv77 [185]
Answer: One pound of cinnamon costs $12.80
7 0
3 years ago
Given the equation: = 4, which property should be applied first?
Ghella [55]
This is = 4 therefore no property is applied
3 0
3 years ago
(0,5) and (4,8) find the equation
-Dominant- [34]
Y’all need to find out on the graft but it was 0.5 will be on the last line
7 0
3 years ago
Other questions:
  • The speed of the wind is changing according to the function V(t)=-1/2+30, where t=time in minutes after 6:00 p.m and V(t) = wind
    11·1 answer
  • Megan is buying a new stove for 499.99. Sales tax is 7.5%. How much will Meagan have to pay in total for the stove? Round your a
    10·2 answers
  • Unit 6 Practice Test: Arc Length and Sectors and Inscribed Angles
    6·1 answer
  • Which equation has the solutions x = 5+/- 2 the squire root of 7 over 3
    12·1 answer
  • CAN SOMEONE HELP ME IN ALGEBRA PLEASE!
    7·1 answer
  • What if u fail 2 electives can u still pass to the next grade
    13·2 answers
  • 1. The side view of Mrs. Marigold's roof on her house
    12·1 answer
  • PLEASE HELP
    7·1 answer
  • Heather's graduation picnic will cost $62 if it has 31 attendees. If there are 137 attendees, how much will Heather's graduation
    6·2 answers
  • Easy will give brainlest no files.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!