The answer to the question is the second option.
Im going to go out on a limb and say its one.
9 = 1 + 8x - 8
9 = 8x - 7
9 + 7 = 8x
16 = 8x
16/8 = x
2 = x <==
7 days in a week, 3 days a rotation.
multiples of 7: 7, 14, 21, 28
multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24
the LCM is 21, because it is the smallest multiple of both numbers. there will be 21 more days until you take dance class on mondays.
Answer:
Here you go!
Step-by-step explanation:
Since we are not yet sure what our number is, we should use a variable to represent that number, and then solve for that variable.
I will use "x" as our variable to represent the number we are trying to find.
Let's take the problem piece by piece.
Six less than four times a number.
If we are using x to represent our number, we know that when we do four times that number we are multiplying x times 4, which is the same as writing "4x."
Next we know that we are taking six less than 4x. Six less than means we will be subtracting 6 from our 4x, which is the same as writing 4x - 6.
Finally, we know that six less than 4x (4x - 6) equals 15. Now we have a full equation:
4x - 6 =15
Now we have to solve for x by getting x by itself:
4x - 6 = 15
add 6 to both sides to move the 6 away from the x
4x = 21
now divide by 4 to get x by itself
x = 21/4, in decimal form this is 5.25