Answer:
6/5
Step-by-step explanation:
-3x - 4y - 2z = 0
x + 3y + 2z = 1
-2x - y = 1
-4x - 4y - 2z = 10
3x + 4y +2z= 0
-x = 10. x = -10
-2(-10) - y = 1
20 - y = 1
-y = -19
y = 19
-10 + 3(19) + 2z = 1
-10 + 57 + 2z = 1
47 + 2z = 1
2z = -46
z= -23
check: 2(-10)+2(19)-23=-5
-20+38-23=-5
-43+38=-5
-5=-5
Area : 1050
Perimeter : 150
Answer:
mean=71
Step-by-step explanation:
Mean x¯¯¯x¯
71
Median x˜x~
72
Mode
64, 83, 79, 38, 81, 90, 59, 93, 70, 73, 71, 51
Range
55
Minimum
38
Maximum
93
Count n
12
Sum
852
Quartiles
Quartiles:
Q1 --> 61.5
Q2 --> 72
Q3 --> 82
Interquartile
Range IQR
20.5
Outliers
none
Answer:
Amount spent after sales tax = $112.58
Step-by-step explanation:
Given that:
Cost of jacket = $49.00
Cost of new Vans = $55.00
Total spent = 49.00 + 55.00 = $104.00
Sales tax = 8.25%
Amount of sales tax = 
Amount of sales tax = $8.58
Total after sales tax = 104.00 + 8.58 = $112.58
Hence,
Amount spent after sales tax = $112.58