A square/rectangular pyramid, a pyramid with four triangular sides and one square side, is a figure with five faces,eight edges<span> and </span><span>five vertices
</span>
It would be D <span>rectangular pyramid
</span>
Answer:
???
Step-by-step explanation:
I don't understand hehehehehehhehehe
1 Possible answer x is 10
30 60 90 are anglesAnswer:
Graph it
Step-by-step explanation:
Answer:
There are 150 blue marbles in Alex's bag.
Step-by-step explanation:
Let 
, 
, 
be the quantities of red, blue and yellow marbles, respectively. From statement we derive three rational equations for initial and final ratios:
Initial ratio
(1)
(2)
Final ratio
(3)
After some algebraic handling we get the following system of linear equations:
(1)
(2)
(3)
The solution of the system of linear equations is:
, 
, 
There are 150 blue marbles in Alex's bag.
