[Solved] Finding the value of the exponential expressions

Exponents

1 Posts

1 Users

0 Reactions

341 Views

RSS

June 14, 2021 6:00 pm

Topic starter

Staff

(@armor)

Admin

Honorable Member

317 Posts
156 153 0

$3^x=25$ and $3^y=125\Rightarrow \frac{2y+x}{7x-4y}=?$

Add a comment

1 Answer

June 14, 2021 6:00 pm

Topic starter

Staff

(@armor)

Admin

Honorable Member

317 Posts
156 153 0

$\small 3^x=5^2$

$\small 3^y=5^3$

$\small \Rightarrow \frac{x}{y}=\frac{2}{3}\Rightarrow x=2k,y=3k$

$\small \frac{2y+x}{7x-4y}=\frac{2.(3k)+2k}{7.(2k)-4.(3k)}=\frac{8k}{2k}=4.$

Add a comment

Answer to: Finding the probability that the die shows an odd number and the coin shows a head

Let E be the event "the die shows an odd number and the...

By Staff , 4 years ago
Finding the probability that the die shows an odd number and the coin shows a head

A die is rolled and a coin is tossed, find the probabil...

By Staff , 4 years ago
Answer to: Finding the probability

Total number of balls = 8 + 7 + 6 = 21. Let E= event ...

By Staff , 4 years ago
Finding the probability

In a box, there are 8 red, 7 blue and 6 green balls. On...

By Staff , 4 years ago
Answer to: Combination

The word 'LEADING' has 7 different letters. When the vo...

By Staff , 4 years ago

Forum Icons: Forum contains no unread posts Forum contains unread posts

Topic Icons: Not Replied Replied Active Hot Sticky Unapproved Solved Private Closed