Step-by-step explanation:
get the app "photomath" it will solve all those problems for you. hope it helps. (but also try to learn how to do it because it will help you in the long run)
Answer:
100
5^2=25 25*4=100
Yes, the cost in dollars and the amount of yogurt are proportional.
The equation is:
1. If varies directly as , you can write it as following:
Where is the constant of proportionality.
2. Let's calculate the value of the constant of proportionality. If and , you have:
3. Then, the equation is:
4. Let's verify if they are directly proportional. Substitute which is the amount of yogurt bought by Jonah. The result must be $0,48:
5. They are directly proportional.
answer by day seven you should have 55