Question

2. MARBLES The ratio of blue marbles to white marbles in a bag is 4 to 5.

At this rate, how many blue marbles are there iſ there are 15 white
marbles?

Answer 1

There are 12 marbles

Explanation:

blue : white

4 : 5

White = 15

x : 15

So,

4/5 = x/15

Cross multiply,

4 × 15 = 5 · x

60 = 5x

60 / 5 = x

12 = x

4 : 5 = 12 : 15

Answer 2

4 blue marbles. 5 white marbles. 5/15=3. 3x4=12. i think it’s 12 marbles.