Question

1. There are red and blue marbles in a bowl.

There are twice as many blue marbles as
red marbles. What expression represents
the number of blue marbles?
A 2b, where b is the number of blue
marbles
B 2r, where r is the number of red
marbles
Cr+2, where ris the number of
red marbles
D
b
where b is the number of
2
blue marbles

Answer 1

2r, where r is the number of red marbles

Explanation:

Since there is twice as many blue marbles as red marbles, it infers blue marbles = 2 × red marbles.