alyxkellar06
03.09.2019 •
Mathematics
What is the correct classification of the system of equations below? 5x + 6y = 1 y = -5x + 6 a. parallel b. coincident c. intersecting
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Ответ:
OPTION C.
Step-by-step explanation:
The equation of the line in Slope-Intercept form is:
Where "m" is the slope and "b" is the y-intercept.
Given the system of equations:
Solve for "y" from the first equation in order to write it in Slope-Intercept form:
Since the lines have different slopes, they cannot be parallel or coincident. Therefore, they are Intersecting.
Ответ:
3. 9.07; 4. D)
Step-by-step explanation:
3. 11.25÷1.24=9.07
4. D) (450-225)÷(12-6)
225÷6=37.5 → this is for 1 day
Now to check whether it's true or not, 750-450=300; 20-12=8; 8×37.5=300