Answer:
It takes 20 weeks to empty the lake
Step-by-step explanation:
Some rate, let's call it 
empties the lake in 10 weeks and a river (with rate 
can fill the lake in 20 weeks. The idea behind the solution of this type of problem is always set the rate to the same units. Let's see this:
which implies that this rate empties 0.1 of the lake per week, thus, 
.
Using the same idea, we can obtain that the filling rate of the river is:
Since both rates are acting at the same time, the total rate of flowing water (either in or out the lake) would be given by:
, which means that the lake is being empty at a rate of -0.05 week and using the rule of three:
Thus, It takes 20 weeks to empty the lake.
Answer:
shape V -----> 90° counterclockwise
shape II ------> 90° clockwise
shape III -----> translation
shape IV -----> 180° rotation
Answer:
h is the horizontal change
Step-by-step explanation:
y = | x-h| +k
h is the horizontal change and k is the vertical change
Answer:
x = no solution
Step-by-step explanation:
If you add 1 from -3, you would get -2. Since there are two different values on both sides, you can say that there isn't a solution for this answer.
