The hypothesis is #1 - if it is the holiday season (:
Mark brainliest if you wanna help a girl out lol
Well the answer to x would be 7 if you take one x from ad since there is only one x in cd then you would have x + 3 which means you basically just got to get to ten and 7 + 3 is 10
Answer: 36 months
Explanation:
The earth complete its orbit in 12 months
While the superior planet complete its orbit in 18 months
Therefore since they are moving in the same direction, both planet will meet at the point where the superior planet and earth completes x and x+1 number of orbits.
Where x is a constant that represents number of orbits.
The period y when they both complete x and x+1 orbit respectively are;
y= 18x and y = 12(x+1)
Equating the two equations, we have,
18x=12(x+1) = 12x + 12
18x-12x= 12
x= 12/6= 2
Since x= 2
y= 18x=18×2= 36months
y= 36 months
Goodluck...
To answer this item, we let x be the number that is not unknown in this item such that the situation in this problem can be expressed as follows,
x - 9.3 = 68.91
Adding 9.3 to both sides of the equation,
x - 9.3 + 9.3 = 68.91 + 9.3
Simplifying,
x = 78.21
The answer to this item is 78.21, this I think is the first choice except that it is mistakenly written as 7.21 only.
