Answer:
y = -1
Step-by-step explanation:
y - ( - 9) = 8
y + 9 = 8
y = 8 - 9
y = -1
- ( - turns to + because you are subtracting a negative number
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Answer:
The SF is 3
Step-by-step explanation:
The sides are 3x the length of the sides of ∆ABC
Answer:
Yes
Step-by-step explanation:
First, we need to find how many cars out of the entire fleet fail the test
4/32 = x/150
Cross multiply to find x
32x = 150(4)
32x = 600
32x/32 = 600/32
x = 18.75
I'll round it to 19. So 19 out of 150 cars fail the test. Find the percentage of this and compare it to the 30% estimate
19 /150 = 0.127
0.127(100) = 12.7%
12.7% is obviously lower than 30% so yes it is strong evidence the percentage of the fleet out of compliance is different from their initial thought
Answer:
last option
Step-by-step explanation:
Answer:
3x − y = −8
Step-by-step explanation:
