Mwamini wants to drink water and juice within a certain time limit. She drinks juice at a constant rate, and she drinks water at a rate of 252525 seconds per liter. Let WWW represent the number of liters of water and JJJ represent the number of liters of juice that Mwamini can drink within her time limit. 25W+40J < 12025W+40J<12025, W, plus, 40, J, is less than, 120 According to the inequality, at what rate does Mwamini drink juice, and what is her time limit?

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

hi,

the area of abcd is 245.

3*24=230

4*94=1039

2*12=24

add all of them up, you get 2450