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Chapter 8: Q4. (page 400)

Solve the equation Check your solution.

-18=3w-1

Short Answer

Expert verified

The solution of our given equation would be w=-5.

Step by step solution

01

Step 1. Given Information.

An equation: -18=3w-1

02

Step 2. Calculation.

To solve our given equation, we use opposite operations as shown below:

−18=3(w−1)          Givenequation−183=3(w−1)3Dividingbothsidesby3−6=w−1w−1=−6w−1+1=−6+1               Adding1onbothsidesw=−5

Let us verify our answer by substituting w=-5in our original equation.

−18=3w−1Givenequation−18=3−5−1Substitutingw=−5−18=3−6−18=−18

Since both sides of equation are equal, therefore, w=-5 is a solution of our given equation.

03

Step 3. Conclusion.

The solution of our given equation would be w=-5.

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Most popular questions from this chapter

In 1995, a total of 32 regular weather advisories were issued during the storm that became Hurricane Opal. The graph shows the wind speed inside Opal at the time of each advisory.

  1. Is wind speed a function of advisory number? Explain.
  2. An ocean storm is considered a hurricane if its wind speed is at least 74 miles per hour. For which advisories did Opal qualify as a hurricane?

Find the value of athat makes the ordered pair a solution of the equation.

y=-3x-1;a,5

The height of a person is measured every year from the age of 1 year to the age of 50 years.

  1. Do the ordered pairs age,height represent a function? Explain.
  2. Would you expect the ordered pairs height,age to represent a function? Why or why not?

To form the inverse of a relation represented by a set of ordered pairs, you switch the coordinates of each ordered pair. For example, the inverse of relation. 1,2,3,4,5,6is2,1,4,3,6,5. Give an example of a relation that is a function, but whose inverse is not a function.

Identify the domain and range of the relation.

-2,5,-1,2,0,4,1,-9
See all solutions

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