The ratio of Anne's height : Ben's height is 7:9. Anne's height is 1.4m. find Ben's height.​

The ratio of Anne's height :

Ben's height is 7 : 9.

Anne's height is 1.4 metres.

Find Ben's height.

Let Ben's height by y meters

Ratio of Annie height and ben height is 7:9

hence 7:9 :: 1.4:y

=>7/9 = 1.4/y

=> 7y = 1.4 * 9

=>y = 1.4* 9/7

= .2*9

=> y = 1.8

hence Ben's Height is 1.8 metres

30,000 mg

Step-by-step explanation:

In this case what we should do multiply the daily quantity by the number of days, that is:

They tell us that the daily amount is 500 milligrams, that is, 500 mg / day.

Now, the total time they tell us is 60 days, so we have:

500 mg / day * 60 day = 30,000 mg

That is, a total of 30,000 milligrams of chlorine in the 60 days.