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
harkovskaia [24]
3 years ago
15

(UFRGS) Se 10x = 20y , atribuindo 0,3 para log2, então o valor de é

Mathematics
1 answer:
sveticcg [70]3 years ago
4 0

Answer:

\frac{x}{y}=1.3

Step-by-step explanation:

<u>Informação recuperada:</u>

(UFRGS) Se 10x = 20y , atribuindo 0,3 para log 2 , então o valor de x/y é

1) Primeiro, passando o 10 para o 2º membro como base do logaritmo:

10x=20y \Rightarrow x=log_{10}20y

2) Aplicando a propriedade do produto de logaritmo:

log(AB)= logA+logB

x=log_{10}20y \Rightarrow x=log(2+10)y\Rightarrow x=(0.3+1)y \Rightarrow x=1.3y

3)  Como quero o quociente divido ambos os lados por y

\frac{x}{y}=\frac{1.3y}{y}\Rightarrow \frac{x}{y}=1.3

You might be interested in
32% of a number is 64 what is the number
Serjik [45]

Answer:

If you take 32 percent of a number and get 64, then what is that number? In other words, you know that 32 percent of a number is 64 and you want to know what that initial number is. Therefore, the answer to "64 is 32 percent of what number?" is 200, and you can also derive that 32 percent of 200 equals 64.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I need this answer fast!
Ganezh [65]

Answer: I think it is b Im not so sure

Step-by-step explanation:

Btw ,

are you doing khan academy?

3 0
4 years ago
Find a solution to the following system of equations.
Alex17521 [72]
The answer is B. -1,2
5 0
3 years ago
Read 2 more answers
Suppose there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on
pogonyaev

Answer: 55.1°F

Step-by-step explanation:

We are informed that there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky, if the plane reaches an altitude of 2,000ft, the drop in temperature will be:

= 1.6° × 2

= 3.2°F

If the temperature on the ground is 58.3°F​, then the temperature when the plane reaches an altitude of 2,000 ft will be:

= 58.3°F - 3.2°F

= 55.1°F

5 0
3 years ago
How do u solve A/B + C/D = E
Flauer [41]
You cannot solve this, I don’t see how....
5 0
3 years ago
Other questions:
  • Please help me !!!!!!!
    14·1 answer
  • Find B in the graph below
    10·1 answer
  • A yogurt costs 45 pence. How many yogets can be brought for 5 pounds
    11·2 answers
  • What is 9-10+25÷5+(-2)
    9·2 answers
  • Which is greater,forty-five hundredths or six tenths? Explain.
    14·2 answers
  • Which statements describe the data in the bar graph? Check all that apply.
    14·1 answer
  • Question 5 of 8<br> In arithmetic, variables look like<br> Answer here<br> SUBMIT
    9·1 answer
  • 1. Mr. Villa bought 91.25 inches of plastic labeling tape. He will use 1.25 inches long to label each.How many labels can he mak
    14·1 answer
  • I need help please !
    5·1 answer
  • Giveaway for 50 points if you answer this<br><br>i made this up my self<br><br>(8+8)-(2+2)×2
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!