Answer: I thought you already asked this question.
Step-by-step explanation:
Answer:
The original number is 5.
Step-by-step explanation:
If one number is x then the other is 3x.
Adding 5 to both numbers we get x + 5 and 3x + 5 and we are also given that (3x + 5) = 2(x + 5)
3x + 5 = 2x + 10
3x - 2x = 10 - 5
x = 5.
Answer:
24y+24
Step-by-step explanation:
You multiply the number on the outside of the parenthesis with both the numbers on the inside of the parenthesis. The + stays the same.
4*6y=24y
4*6=24
Hope this helps!
Answer:
where is the figure
Step-by-step explanation:
u should upload the figure too
Answer:
0.08
Step-by-step explanation:
Please use parentheses to indicate which operations must be done first. I 'm choosing to believe that you meant 7^(3x-1) and 5^(x-1).
Taking the common log of both sides, we get:
(3x-1)log 7 = (x-1)log 5
Then 3x·log 7 - log 7 = x log 5 - log 5
Grouping the x terms:
x(3·log 7 - log 5) = log 7 - log 5. We combine log 7 and log 5, obtaining log (7/5).
Then x(3·log 7 - log 5) = log (7/5).
Solving for x:
log (7/5)
x = ---------------------
3·log 7 - log 5
0.1461
x = ------------- = 0.08
1.0363
This agrees with the 3rd answer choice.
