The answer is (-2, -5). You can find this answer by using a linear system of equations.
Answer:
2x-y=-1
Step-by-step explanation:
Perimeter = 2(L + W)
2(L + 10) = 50
2L + 20 = 50
2L = 30, L = 15
Solution: the length is 15 inches
Answer:
y= -4x+5
Step-by-step explanation:
We can see that for everytime the x value increases the y value decreases by 4
This means that in our equation y=mx+b
m (our slope) = -4
Now it's just a matter of solving for b
you can do this by pluggin in a coordinate
(1,1) for example
1= -4*1+b
1= -4+b
b=5
Therefore the equation is y= -4x+5
Answer:
a. 2.5
b. 2.333
c. 2.85
Step-by-step explanation:
A) 1. subtract -x on both sides 2. to get 3x-1/2=7
3. Add 1/2 on both sides 4. to get 3x=7.5
5. divide 3 on both sides 6. To get... x=2.5
B)1. Same process. 2. x+2=13/3
3. x=13/3-2 4. x= 2.33(repeating)
C) 1. same process. 2. 2x-x/3=3+7/4
3. 2x-x/3=4.75 4. Isolate -x/3
5.-x/3=4.75-2x 6. multiply both sides by 3
7. -x=14.25-6x 8. 5x=14.25
9. x= 2.85
* remember to distribute the 3 to each variable.