Answer:
x=45/2
Step-by-step explanation:
4/9=10/x
cross product
9*10=4*x
90=4x
x=90/4
simplify
x=45/2
A because you subtract 15from 20 and it =5 or 1/4
Answer:
a = 7 + 2b/5 + 3c/5
b=−35/2 + 5a/2 − 3c/2
c = −35/3 + 5a/3 − 2b/3
Step-by-step explanation:
Yes
Answer:
0.3209
in case you dont know A z-score tells you if the distribution it comes from is normal.
Step-by-step explanation:
Answer:
d = 9
Step-by-step explanation:
d = 
d = 
d = 
d = 
d = 9