1. The ad on TV said: Buy a new turbocharged Vroom car now and save 16%, a total savings of $10,320. What was the original price
2 answers:
You might be interested in
We have been given that the ages of students in a school are normally distributed with a mean of 15 years and a standard deviation of 2 years.
We are asked to find the percentage of students that are between 14 and 18 years old.
First of all, we will find z-score corresponding to 14 and 18 using z-score formula.
Similarly, we will find the z-score corresponding to 18.
Now we will find the probability of getting a z-score between and
that is
.
Using normal distribution table, we will get:
Let us convert into percentage.
Therefore, approximately of the students are between 14 and 18 years old.
The required equation is:
Step-by-step explanation:
Given
Let a be Anne's Age
and
b be Betty's age
Now we will onvert the given word problem in the form of equation step by step
"twice Betty's age." will be represented by
Then
"3 years younger than twice Betty's age." will be represented as:
Now
"Betty's sister, Anne, is 3 years younger than twice Betty's age."
Hence,
The required equation is:
Keywords: Word problems, linear equation in two variables
Learn more about linear equation in two variables at:
#LearnwithBrainly