samariamartinez1029
27.11.2019 •
Mathematics
Alibrary has at least 900 square feet to create a new study area. each study cubicle uses 6 square feet, and each computer station uses 8 square feet.
which inequality correctly represents this situation, where s is the number of study cubicles and c is the number of computer stations?
6s+8c≤900
6s+8c> 900
6s+8c< 900
6s+8c≥900
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Ответ:
6s + 8c ≥ 900
Step-by-step explanation:
The library has at least 900 square feet available. It means 900 or more.
If s is the number of study cubicles and c is the number of computer stations, the total space occupied by them is 6s+8c. That space is 900 or more square feet, so our inequality is 6s + 8c ≥ 900
Ответ:
Statement 1 : True
Statement 2: False
Statement 3: False
Statement 4:True
Statement 5:False
Statement 6:True
Step-by-step explanation:
Given :
To Find: Which statements about the system are true?
Solution:
Slope intercept form:
where m is the slope
Convert the given equations in slope intercept form
Equation 1:
--A
On comparing with general form
Slope = m =
Equation 2:
--B
On comparing with general form
Slope = m = 1
Substitute the value of x form B in A
Substitute the value of y in B to get value of x
Thus the solution is (0,5)
Thus The system has one solution.
So, Statement 1 is true
Since the slopes of the given lines are not same so the lines are not parallel
Thus the statement 2 is false.
Slope of line 1 is and slope of line 2 is 1
Since the slopes are not same
So, statement 3 is false.
Equation 1:
To find y intercept substitute x =0
Equation 2:
To find y intercept substitute x =0
So,statement 4 is true Both lines have the same y-intercept.
Statement 5: The equations graph the same line.
Statement 5 is false (refer the attached graph)
Statement 6 is true The solution is the intersection of the 2 lines (refer the attached graph)