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
balandron [24]
3 years ago
12

What is the answer to -2a-9=6a+15

Mathematics
2 answers:
statuscvo [17]3 years ago
6 0

Answer:

a=-3

Step-by-step explanation:

-2a-9=6a+15

+2a +2a

-9=8a+15

-15 -15

-24=8a

8 8

-3=a

timurjin [86]3 years ago
4 0

Answer:

a=-3

Step-by-step explanation:

-2a-9=6a+15

Add 9 to both sides:

-2a-9+9=6a+15+9

-2a=6a+24

Subtract 6a from both sides:

-2a-6a=6a+24-6a

-8a=24

Divide both sides by -8:

\frac{-8a}{-8}=\frac{24}{-8}

a=-3

You might be interested in
The information given represents lengths of sides of a right triangle with c the hypotenuse. Find the correct missing length to
klasskru [66]
A² = c² - b²
a² = 21² - 13 ²
a² = 441 - 169
a² = 272
a = √272 = 16.49242 ≈ 16.49
Answer : D ) 16.49
5 0
2 years ago
Read 2 more answers
7
LUCKY_DIMON [66]

The answer is B. 15 cm

5 0
2 years ago
Geometry pls halp... I have been asking this single question for over half an hour
irina [24]

Answer:

first one is SAS

Step-by-step explanation:

3 0
3 years ago
Find each measure plz help
Rashid [163]

Answer:

m∠QRS = 52°

Step-by-step explanation:

From the given figure,

In right triangles ΔRQT and ΔRST,

QT = TS = 7.5 units [Given]

RT ≅ RT [Reflexive property]

ΔRQT ≅ ΔRST [By HL theorem of congruence]

Therefore, m(∠QRT) = m(∠SRT) = 26° [CPCTC]

m(∠QRS) = 2m(∠QRT)

               = 2×(26°)

               = 52°

4 0
2 years ago
Jordan is a student who hates to be called on in class. His teacher randomly calls on students and Jordan knows that on any give
Anika [276]

Answer:

0.1 for each case

Step-by-step explanation:

Because Jordan's teacher randomly calls on students and Jordan has 10% chance of being called on any given day, the probability that on the first day Jordan is called on is 0.1 Besides, the probability remains constant on any given day, so, the probability  that on the 2nd day Jordan is called on is 0.1 and for the 5th day is the same 0.1 Probability is always a number between 0 and 1.

7 0
3 years ago
Other questions:
  • 8-2 3/4 please help im so confused...
    9·2 answers
  • Which equation represents:
    15·1 answer
  • Write 4.135 as a fraction
    14·2 answers
  • To find the quotient 2/5 ÷ 1/4 i will give brainliest
    9·1 answer
  • PLEASE HELP!! Anyone??
    14·1 answer
  • Interval notation, I need help with this and I can't figure out how to do it!!
    12·1 answer
  • What is 4 2/5 × 1 1/2 ​
    7·2 answers
  • Please help me I don't know what number e stand for ​
    10·1 answer
  • Which expression is equivalent to -6(-2/3+2x)?<br> A. -4-12x<br> B. -4+12x<br> C. 4-12x<br> D. 4+12x
    9·2 answers
  • Given that secA = 13/5, what is the value of cosA​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!