Question

There were 2 yellow straws and 3 red how many red in 30 ​

Answer 1

30 yellow straws and 45 red straws

30:45

Explanation:

Make a ratio:

2:3, 2 being the yellow straw and 3 being the red straws

They are now asking how many red if there are 30 yellow straws

2:3 = 30:x

You could either cross multiply or simply do 30 ÷ 2 = 15 then 15 × 3 = 45. Your answer is 45

Cross multiplying

2x = 90

90 ÷ 2 = 45