Question

A cup of broth can have 870 milligrams of salt, which is 30% of the recommended daily allowance. What is the recommended daily amount?

Answer 1

FIrst, you can make an equation to solve this problem
870/x=30/100 Cross multiply and then divide
870 times 100=87000
Then do 87000 divided by 30
The answer is 2900 milligrams of salt

Answer 2

870 milligrams = 30% of recommended.

870 = 30% of x

30% of x = 870

0.30x = 870

x = 870 / 0.3

x = 2900

Daily recommended is = 2900 milligrams.