Answer:
x<-9
So C is correct answer
Step-by-step explanation:
-3x-7<20
-3x<20+7
-3x<27
x<27/-3
x<-9
9514 1404 393
Answer:
6 +8√5
Step-by-step explanation:
The leg length can be reduced to simpler form:
3 +√45 = 3 +√(3²·5) = 3 +3√5
The perimeter is the sum of the side lengths, so is ...
(3 +3√5) +(3 +3√5) +(2√5) = 6 +8√5 . . . perimeter
Answer:
bet ok
Step-by-step explanation:
Answer: 0.625
Step-by-step explanation: 5 divided by 8= 0.625
Answer:
Train A = 214
Train B = 86
Step-by-step explanation:
a + b = 300
a - b = 128
a + b = 300
a = 128 + b
(128 + b) + b = 300
128 + b + b = 300
128 + 2b = 300
2b = 300 - 128
2b = 172
b = 172 ÷ 2
b = 86
a = 128 + b
a = 128 + (86)
a = 214