How to solve this multistep inequality (3f+9<21)

Answers

Answer 1

Answer: $3f+9<21\ \ \ \ \ | subtract\ 9\n\n3f<12\ \ \ | divide\ by\ 3\n\nf<4\n\nSolution\ is\ f\in(-\infty,4)$

Related Questions

1982 2016 how many year
Colin took out a loan with a principal of $32,800. After five years, the interest and principal totaled $48,872. If Colin made monthly payments of $816 for five years until the loan was paid off, how much did Colin pay in service charges?
Mr. Lowery has 2 3/4 pounds of ground beef that he will use to make hamburgers for a picnic. What is the maximum number of quarter pound (1/4 lb) hamburgers he can make?Question 9 options:351112
4,2 and 6, -5Give answer
Explain how to use multiplication to check the answer to a division problem

A bag contains 4 blue, 4 red, and 4 green marbles. Four marbles are drawn at random from the bag. How many different samples are possible which include exactly two red marbles?

Answers

you make a tree diagram to find the possible outcomes, which there are 81 possible outcomes, 24 of which have exactly 2 red in them.

How do I work out this problem, How many ways can the letters in the word "WISCONSIN" be arranged?

Answers

This is a typical case of permutation of elements

Formula is:

$\boxed{P_n=n!}$

Permutation of n elements is equal to n!

So:

$P_9=9!=362,880 \ ways$

Which of the following is a example of perpendicular lines

Answers

The correct option is D.

Important information:

Each graph has two lines.

Perpendicular lines:

Two lines are called perpendicular lines if the angle between those lines at the intersection point is 90 degrees.

In option A, the lines are parallel because they have the same direction and slope.

In option B, if we increase the lines, then they can not make a 90-degree angle.

In option C, the lines are not making a 90-degree angle.

In option D, the lines are perpendicular because they are making a 90-degree angle.

Therefore, the correct option is D.

Find out more about 'Perpendicular lines' here:

brainly.com/question/2096532

Its option D. the first is parallel and the rest two will intersect at a point but not at 90 degree. Since, in the fourth one, the lines meet at 90 degree, it is a perpendicular line

Does anyone know what's the answer for this question ???