Answer: 14
Step-by-step explanation: The perimeter is all of the side added together. When finding the perimeter of a rectangle the opposing sides have the same value. So the equation would be 2(12) + 2(a) = 52. 12 x 2 is 24. 52- 24 is 28 and youre left with 28 = 2(a). You divide each side by 2 and get 14 = a
His friend walked two fifths of mine tenths of a mile.
Two fifths of nine tenths of a nile is (2/5)*(9/10)=9/25 miles
Answer:
1.) 7x+5y
2.)-19m+14r
3.)22b+40c
4.)10x+25
5.)7m+7
Step-by-step explanation:
ez
Question
Consider this system of equations. Which shows the second equation written in slope-intercept form?


A. 
B. 
C. 
D. 
Answer:
B. 
Step-by-step explanation:
Given
Equation 1: 
Equation 2: 
Required:
Equivalent of equation 2
To get an equivalent of equation 2 (in slope intercept form), first we have to simplify equation 2

Open the bracket


Simplify fraction

Divide through by 2


Re-arrange

The next step is to compare each of option A through D with 
A.
is not equal to 
We check the next available option
B.
is equal to 
This option is equivalent to the second equation in slope-intercept form.
We check further if there are more equivalent options
C.

Convert fraction to decimal

This is not equal to 
D.

Convert fraction to decimal

This is not equal to 
Hence, the only equation that is equivalent to the second equation written in slope intercept form is Option B
I got y=x but I’m not sure if that’s correct