Answer:
a. - 45 feet
b. - 18 feet.
Step-by-step explanation:
If we consider the water level as the reference level then the elevation of the fish is - 27 feet, i.e. the fish is 27 feet below the water level.
a. Now, the fish decreases its elevation by 32 feet and then increases its elevation by 14 feet.
Therefore, the new elevation of the fish is (- 27 - 32 + 14) = - 45 feet.
b. Now, if my elevation is of the new elevation of the fish then my elevation will be =
feet. (Answer)
Answer:
The age of Jenny's mom is 40 % of age of Jenny's great-grandmother. (Input: 40)
Step-by-step explanation:
The percentage needed is calculated by the following expression:
Where:
- Percentage of Jenny's mother with respect to Jenny's great-grandmother, measured in percentage.
- Age of Jenny's mother, measured in years.
- Age of Jenny's great-grandmother, measured in years.
If we know that and
, the percentage is:
The age of Jenny's mom is 40 % of age of Jenny's great-grandmother.
There are many ways to check if the point (1,3) is a solution to the linear equation .
Let us check it by expressing y in terms of x.
The given expression is 5x-9y=32. If we add -5x to both sides we will get:
Multiplying both sides by -1 we will get:
In order to isolate y, we will divide both sides by 9 to get:
Now let us plug in the given value of x=1 from the point (1,3). This should give us y=3. Let us see if we get y=3 when we plug x=1 in the above equation.
Thus, we see that when x=1, y=-3 and that and hence we conclude that the point (1,3) is not a solution to the original given linear equation 5x-9y=32.
For a better understanding of the explanation given here a graph has been attached. As can be seen from the graph, (1,3) does not lie on the straight line that represents 5x-9y=32, but (1,-3) does lie on it as we had just found out.
