Answer:
b+3(3-2b)=1-2(b+1)
One solution was found :
b = 10/3 = 3.333
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
b+3*(3-2*b)-(1-2*(b+1))=0
Step by step solution :
Step 1 :
Equation at the end of step 1 :
(b+(3•(3-2b)))-(1-2•(b+1)) = 0
Step 2 :
Equation at the end of step 2 :
(b + 3 • (3 - 2b)) - (-2b - 1) = 0
Step 3 :
Equation at the end of step 3 :
10 - 3b = 0
Step 4 :
Solving a Single Variable Equation :
4.1 Solve : -3b+10 = 0
Subtract 10 from both sides of the equation :
-3b = -10
Multiply both sides of the equation by (-1) : 3b = 10
Divide both sides of the equation by 3:
b = 10/3 = 3.333
One solution was found :
b = 10/3 = 3.333
Step-by-step explanation:
Answer:
2/5 of the students
Step-by-step explanation:
Let the total number of students be x. Two-Thirds of the students plan to do some volunteering. Two-Thirds in fraction can be written as 2/3. So the portion of the students which plan to do some volunteering is:

From these students, 3/5 plan to volunteer at community center. So the students who plan to volunteer at community center will be:

This means, among x students, 2/5 of the students plan to volunteer at the community center this summer.
Put the numbers in order
5, 8, 10, 20, 25, 30, 35, 40, 45
Q1 = (8 + 10) / 2 = 18/2 = 9
Q2 -- median = 25
Q3 = (35 + 40)/2 = 75/2 = 37.5
the upper quartile (Q3) = 37.5
Answer:
A, B, C
Step-by-step explanation:
I believe those are the answers. A B and C are derived from common sense.
18-42+5x2
18-42+10
18-32
-14
92+4x7-3
92+28-3
92+25
117
52-4+7x3
52-4+21
48+21
69