Answer:
3. 9x+5+x-7=25
4. 10x-2=25
5. 10x=27
Step-by-step explanation:
3. 9x+5+x-7=25
4. 10x-2=25
10x=25+2
5. 10x=27
x=27÷10
x=2.7
Answer:
all work is pictured/shown
Answer:
12
Step-by-step explanation:
(# of pencils)x(3/4)=9
(# of pencils)x(0.75)=9
(# of pencils)=9/(0.75)=12
Answer:
<h2>The option B and D are the equations.</h2>
Step-by-step explanation:
Let, the total number of students are x.
The number of students having the ticket is
.
It is given that the number is 20.
Hence,
.
Option B is the equation.
Option D is also the same.
The difference is just, the variable is wriiten in the other side.
Answer:
n = 2
Step-by-step explanation:
1.2n - 1.5 = 0.45n
collect like terms
1.2n - 0.45n = 1.5
0.75n = 1.5
divide both side by 0.75
0.75n/0.75 = 1.5/0.75
n =2