Answer:
14.29cm
Step-by-step explanation:
Height of the building=10cm
Angle of depression=60°
We are therefore asked to find the distance from the stone to the
the foot of the building;Therefore we use Tan ratio which is opp/adj;
Let the distance from the stone to the foot of the building be x;
10/x=Tan60°
10/x=1.7/1
We then cross multiply to get 1.7x=10
x=10/1.7
=10*10/1.7*10
=100/17
=14.29cm.
Each bracelet costs $2.75
She sells them for $7
She makes 7-2.75 = $4.25/bracelet
Let b = # bracelets
To make a profit she has to earn more than $775
4.25b > 775
b > 775/4.25
b > 182 6/17
To make a profit she must sell at least 182 bracelets
Answer:
44
Step-by-step explanation:
Sara had 66 marbles in total. After taking 22 away, she is left with 44.
Hope this helps!
