Answer: the 4th one I think
Step-by-step explanation:
Answer:
250 grams because 1 kilogram=1000grams
If price of laptop=x
Let number of months required to save the necessary amount be y
5*2^y=x
2^y=x/5
y=log2 x/5
I assume you are trying to solve for each variable. if thats the case you want to use one equation to solve for y and then plug the y value into the next variable
Problem: y =-3x=4 so -3x+4=3x-2
x=1
plug x value into one of the equations
y=3(1)-2
y=1
The answer is 25.14 !!!!!!!!!!!!!!!!!