Answer:
15
Step-by-step explanation:
15 because the mode is the one that occurs the most and 15 has 3 numbers.
Let's represent the unknown number with Y
So it says 5 times the sum of Y plus 3 equals 8 times Y minus 9
That is represented as;
5(Y+3)=8Y-9
First of all, multiply 5 by what is in the bracket. That will be 5Y+15
(5 times Y is 5Y and 5 times 3 is 15)
Therefore;
5Y+15=8Y-9
Collect like terms. So -9 will go over the equality sign to become +9. The same applies to 5Y
15+9=8Y-5Y
24=3Y
Divide both sides by 3
24 divided by 3 is 8. So Y= 8
The number is 8 which is B
Answer:
x=20
Step-by-step explanation:
Vertical angles are equal
6x+10 = 5x+30
Subtract 5x from each side
6x-5x+10 = 5x-5x+30
x+10 = 30
Subtract 10 from each side
x+10-10 = 30-10
x =20
I suggest using the app photo math. It helps a lot. The answer is the FIRST choice
(dz/dx)= (-e+4)(4pi)sin(4pi*t)
