The number of kilograms of water in a person's body varies directly as the person's mass. A person with a mass of 90 kg contains 60 kg of water. How many kllograms of water are in a person whose mass is 75 kg?

50 kilograms

Step-by-step explanation:

The example had a ratio of 90:60, which simplifies down to 3:2 (just like a fraction), and 90 divided by 3/2 is equal to 60

If we apply that ratio to 75, we do the same thing. 75 divided by 3/2, or 75 multiplied by 2/3, or 50. (75/3=25, 25*2=50)

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: