Answer:
d
Step-by-step explanation:
Answer
39 bills of 1$
16 bills of 10$
Step-by-step explanation:
x-nr of $1
y-nr of $10
x*1+y*10=199
x+y=55 , x=55-y
so I use the substitution method
(55-y)*1+10y=199
55+10y-y=199
-55 -55
9y=144
y=144/9
y=16
so x=55-16
x=39
verify 16*10+39*1=160+39=199
Equilateral, Scalene, Isosceles, Right, acute, obtuse .
33% of decrease.
150-100=50
50 is 1/3 of 150
1/3= 33%
11=y/6
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hope it helps
sorry, I didn't know how to explain it
