Answer:
50
Step-by-step explanation:
X+52+78=180
X+52+78=180
-78 -78
X+52+0= 102
X+52=102
-52 -52
X+0= 50
X=50
To find what X is equal to it's process of elimination.
You know X plus the numbers gives you the answer so subtracting those same numbers from your answer will give you X.
You have to mKe sure you do the same thing to both sides of the equations though.
Let's say
X+3=5
To find X you need to single X out on it's side of the equation.
To single X out you want to nullify anything acting on X by doing the opposite the opposite of positive 3 is negative 3... so
X+3= 5
-3 -3
We add negative 3 to each side of the equation to nullify the 3 on the X side.
We are left with
X=2
Im sorry but don’t know look it up if you can?
*Given
Total number of students - 54
Fraction of students going to lunch first - 2/3
Fraction of students going to the exhibit first - 1/3
*Solution
1. Since the students are grouped into 3, the total number of students must be divided into 3 to determine the number of students in each of the 3 groups.
54/3 = 18
Thus, there are 18 students per group.
2. Two-thirds (2/3) of the total number of students will go to lunch first. Since the total number of students have already been divided into 3 groups, this simply means that 2 of the 3 groups will go to lunch first. Since each group has 18 students, 2 groups would have,
18*2 = 36
Thus, 36 students will go to lunch first.
95÷100of the time
if he ran 20 races rhus month
95÷100×20 =19
Do you mean hunderths 0.06 if its regular its 000