Answer:
d
Step-by-step explanation:
Answer: <em>The correct options are.....</em>
<em>A) 
and</em>
<em>B) 
</em>
Step-by-step explanation:
Suppose, the number of e-mails Danette had in her inbox before she started reading was 
.
Percentage of read emails is 80%, so the number of read emails 
<u>Thus, the number of unread emails</u> 
, <u>which is given as</u> 
.
So, the equation will be........
Thus, the expressions which could represent the number of e-mails Danette had in her inbox before she started reading are: or
For this case you have the following advantages:
1) you can see the graph of both equations
2) you can see where the equations intersect
3) the point of intersection represents the solution to the system of equations.
4) You can solve the problem in much less time than doing it by hand
5) You can find very accurate solutions.
Answer: it is 3 • (x + 4)
Step-by-step explanation: We move all terms to the left:
4-2x+8-(+5x)=0
We add all the numbers together, and all the variables
-2x-(+5x)+12=0
We get rid of parentheses
-2x-5x+12=0
We add all the numbers together, and all the variables
-7x+12=0
We move all terms containing x to the left, all other terms to the right
-7x=-12
x=-12/-7
x=1+5/7We move all terms to the left:
4-2x+8-(+5x)=0
We add all the numbers together, and all the variables
-2x-(+5x)+12=0
We get rid of parentheses
-2x-5x+12=0
We add all the numbers together, and all the variables
-7x+12=0
We move all terms containing x to the left, all other terms to the right
-7x=-12
x=-12/-7
x=1+5/7
Answer:
Square length of 5cm
Step-by-step explanation:
Given
Required
Determine the possible measure of square from the rectangular sheet
To do this, we simply calculate the greatest common factor (GCF) of the dimension of the rectangle.
The common factor is: 5
<em>Hence, the side length of the square is 5cm</em>
