9+4+7+3+10+9=42
42÷6= 34.5. I believe "mean" is the same as avgerage.
Answer:
Step-by-step explanation:
Well, the opposite of a number is the same number with the opposite sign. For example, the opposite of -1 is 1.
So, say we have an equation where we're subtracting a number, for example, 2-1, which obviously equals 1. Now, if we add the opposite of 1 to 2, we get the equation 2+(-1) which still equals 1.
I hope this helps!
18 t - 18 t * 30% = 18 t - 17 * 0,3 = 18 t - 5,4 t = 12,6 t
Answer:
Step-by-step explanation:
Let Vernice age be x
Her mother's age be 2x+10
10=1\2(2x+10) = 10×2=2x+10
20=2x+10
20-10=2x
10=2x
x=5
