Answer:
First, in standard notation, we must define our zero.
In this case, would make sense to define the zero in the surface of the water.
(below is a number line so you can see the process to think this)
Then if the whale is swimming 60ft bellow the surface of the water, then the first position of the whale is:
-60
Now the whale goes up 30ft, then the new position of the whale is:
-60ft + 30ft = -30ft.
The correct option is A:
The equation is -60 + 30 = -30. The whale is 30 feet below the water's surface.
(you wrote that the equation was equal to +30 instead of -30 in the option A, i supposed that it was a typo)
Answer:
x=9
adjacent angles
Step-by-step explanation:
we can set up an equation because if we add these angles, we will get our 90 degree angle,
lets solve for x, first add like terms,
9x+9=90, subtract 9 from both sides, 9x+9-9=90-9, 9x=81
divide both sides by 9 and we get 9, so x=9
These are adjacent angles because adjacent angles are angles that are right next to each other. They can form a bigger angle because they are right next to each other
Answer:
3
Step-by-step explanation:
Define the range of a list of numbers.
<em>I'm not %100 percent certain because I learned that a long time ago.</em>
Answer:
−4+5−2
Step-by-step explanation:
Just combine the like terms which are 3y and 2y, you add and get 5y and everything else stays the same
Answer:
$250
Step-by-step explanation:
1st month you spent $300. And the flight back is $200. 300+200=500. 1500-500=1000. Yoy have 1000 dollars to spend in 4 months. 1000/4=250, so each month you can spend $250.
