Answer:

Step-by-step explanation:


Answer:
40 units
Step-by-step explanation:
i took the test
4x = x + 90
-x -x
3x = 90
/3 /3
x = 30
The answer is A) 30
Answer: -0.57
Step-by-step explanation:
z-score: data - mean / standard deviation
25 - 27 / 3.5
= -0.57
Answer:
a<0.4
Step-by-step explanation:
The given inequality is
10(a+0.50)<9.00
We expand the parenthesis to get:
10*a+10*0.50<9.00
Multiply to get:
10a+5<9.00
Subtract 5 from both sides to get:
10a<9.00-5
This implies that:
10a<4
Divide both sides by 10
a<4/10
a<0.4