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
alisha [4.7K]
4 years ago
10

-5(a + 3) = -55 What is the value of a?

Mathematics
1 answer:
Kobotan [32]4 years ago
5 0

Answer:

a=8

Step-by-step explanation:

-5(a+3)=-55

First you times the bracket by -5

-5a-15=-55

Then you add the 15 to -55 because since the 15 is a negative on the right it has to be the opposite to the left

-5a=-40

Then you divide both sides by negative 5

-5a .     = .      -40  

---------         ----------

- 5                    -5

a= 8

You might be interested in
5. Solve for x.<br> 21<br> 4
kenny6666 [7]

Answer: 10

Step-by-step explanation:

By the geometric mean theorem, if we let the length of the altitude to the hypotenuse be y, this means that y^{2}=84 \longrightarrow y=\sqrt{84}.

So, by the Pythagorean theorem, x=\sqrt{(\sqrt{84})^{2}+4^{2}}=\boxed{10}

7 0
2 years ago
Write a recursive formula for an, the nth term of the sequence 3, -4, -11
yKpoI14uk [10]

Answer:

, 12, 48, 192...

a. Write a recursive formula for the nth term of the sequence

Ans: a(n+1) = 4*a(n)

------------------------------

b. Write a general formula for the nth term of the sequence

a(n) = 3*4^(n-1)

--------------

c. Calculate S10 for this sequence

Geometric sequence with a(1) = 3 and r = 4

----?

Step-by-step explanation:

8 0
3 years ago
What is the y-intercept of a line that has a slope of 3 and passes through point (–1, –7)?
valentina_108 [34]

Answer:

esla  iadje hof wwipnrwngwiggbvnrhwbgiwkguuirgovhefkgpeongeirghgireiivir

:

3 1
4 years ago
Read 2 more answers
Solve l 3x-7 l = 2
Lelechka [254]

Answer:

1) Solutions are x = 3 and x = 5/3

2) Solution are x ≤ 13/2 and  x ≤ -3/2

Step-by-step explanation:

1) Given absolute inequality,

|3x-7| = 2

⇒ 3x - 7 = ± 2

⇒ 3x = 7 ± 2

\implies x=\frac{7\pm 2}{3}

x=\frac{7+2}{3}\text{ or }x=\frac{7-2}{3}

\implies x = 3\text{ or }x=\frac{5}{3}

2) l 2x-5 l ≤ 8

⇒  2x-5  ≤ ±8

⇒   2x ≤ 5 ± 8

\implies x\leq \frac{5\pm 8}{2}

x\leq \frac{5+8}{2}\text{ or }x\leq \frac{5-8}{2}

\implies x \leq \frac{13}{2}\text{ or }x\leq-\frac{3}{2}

8 0
3 years ago
Read 2 more answers
You and 3 friends went out for dinner. The bill is $85.36. How much do you pay
Marina CMI [18]

Answer:

$28.45

I think, hope it helps!

8 0
3 years ago
Other questions:
  • Need answer to question number 4
    15·1 answer
  • an investment of $5000 earned $1050 for 1 year. How much will an investment of $9000 earn at the same rate for 1 year?​
    5·1 answer
  • Find the y and x intercept 6x-8y=48
    15·1 answer
  • What is the value of x?<br><br><br><br> (Attatched file didn't upload first time for some reason)
    8·1 answer
  • Patty’s gymnastics class is 5/6 of an hour long. Patty practices five different skills and spends the same amount of time on eac
    11·1 answer
  • IThere are 5 times as many males as females on the maths course at university. What fraction of the course are male? Give your a
    13·1 answer
  • A quadrilateral has no pairs of parallel sides. Which name best describes the figure?
    9·1 answer
  • The current population of a small town is 10,500, and its population is expected to grow at a rate of 5% per year. Which of the
    6·1 answer
  • If m&lt;EBD=36° and m&lt;DBC=108°,find m&lt;EBC​
    13·1 answer
  • How to simplify. Year 8 level
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!