Answer:
4
Step-by-step explanation:
Answer:
When two variables are directly or indirectly proportional to each other, then their relationship can be described as y = kx or y = k/x, where k determines how the two variables are related to one another.
Step-by-step explanation:
This k is known as the constant of proportionality.
Answer: 20, 300, -50, 1,000, 80,000. Take the number 32; the choices to replace it with are 30 or 40 (they both have only one non-zero digit).
Step-by-step explanation: In front-end estimation, we replace the original number with a number that's close by but only has one non-zero digit.
Answer:
x=-1
Step-by-step explanation:
