Answer:
The oldest age of Olivia’s sister can be 11 years.
Step-by-step explanation:
Given: Olivia’s sister’s age is x years.
To write: inequality that can be used to represent the given situation.
As Olivia is 6 years older than her sister,
Olivia's age
As the sum of their ages is no more than 28 years,
So, the oldest age of Olivia’s sister can be 11 years.
Answer: A company has 440000 as revenue.
Step-by-step explanation:
Total revenue a company earned = 800000
Variable costs = 60% of revenue
So , variable costs becomes
Now, company lost = 40000
So, remaining revenue becomes
So, a company has 440000 as revenue.
The exponent of the power in the scientific notation of the result of the expression (9.1 × 10^9)(7.5 × 10^2) is 12
<h3>How does scientific notations work?</h3>The number is written in the form where we have
The number b shows the order, which is the most important figure for which scientific notation is used. It tells us how much order large or small a value is in powers of 10. We can for a time, ignore the value of 'a' for two comparable quantities and only compare their orders(this type of comparison is useful when difference is too big, like size of human to size of a star etc sort of comparisons).
Scientific notations have some of the profits as:
Expressing the multiplication of (9.1 × 10^9)(7.5 × 10^2) in terms of scientific notation, we get:
(the exponent is 12)
Thus, the exponent of the power in the scientific notation of the result of the expression (9.1 × 10^9)(7.5 × 10^2) is 12
Learn more about scientific notation here: