Answer:
Eduardo's second statement is wrong.
Step-by-step explanation:
Eduardo says that an increase from 10 to 40 is 300% which is true. Because there is an increase by (40 - 10) = 30 and the percent of increase is calculated with respect to 10.
So, % of increase =
%.
But when we consider a decrease from 40 to 10, then the decrease is by (40 - 10) = 30, but the percent of decrease will be calculated with respect to 40.
Therefore, the % decrease =
%.
Hence, Eduardo's second statement is wrong. (Answer)
Answer:
you put the variable to one side
Step-by-step explanation:
ex: 2x=5
Solve ex: 2x=5
/2 /2
x=5/2
<span>the answer would be 0.27777777777</span>
You change the ratio to suit the situation.
1cm:5m > 30cm: 150m
( I did this mentally so double check 5*30)