Answer:
3.7 + r < 1.2
Step-by-step explanation:
a number r added to 3.7 is 3.7 + r
New expression 3.7 + r should be less than 1.2 --->
3.7 + r < 1.2
So 12=total
7=blue
black=total-blue=12-7=5
black=5
1. 2/3 of 12 were taken out or 24/3 were taken out or 8 marbles were taken out
there is not enough info becasue it doesn't specify which ones were taken out
2. there is not enough info
3. not chosen=total-chosen=12-8=4 so 4 were chosen
Answer:
A
Step-by-step explanation:
tan60=opp/adj
tan60=15/x
15tan60=x
25.98=x (when you calculate 15 root 3 it is the same number)
Percent formula : is / of = % / 100
16 is what percent of 72...
is = 16
of = 72
% = x
sub into the formula
16/72 = x / 100
cross multiply because this is a proportion
(72)(x) = (100)(16)
72x = 1600
x = 1600/72
x = 22.2 % <===
