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3 votes
Solve the following equation for x to find the total number of people who became members of a social networking site for a certain month:

x = 0.8x + 72
How many people became members of the site that month?

User Wedava
by
7.2k points

2 Answers

3 votes

Answer:

360 people became members of the site that month

Explanation:

Solve the following equation for x


x = 0.8x + 72

To solve for x we need to get 'x' alone


x = 0.8x + 72

Subtract 0.8x on both sides


x-0.8x = 0.8x-0.8x + 72


0.2x=72

Divide both sides by 0.2


x=360

User Gahooa
by
8.0k points
5 votes

Answer:

The total number of people who became members of the site that month is 360....

Explanation:

Let x represents the total number of people who became members of the site that month.

We have the equation:

x = 0.8x+72

Combine the like terms:

x-0.8x= 72

0.2x =72

Now divide both sides by 0.2

0.2x/0.2 = 72/0.2

x= 360 people

This shows that the total number of people who became members of the site that month is 360....

User Ben Lachman
by
7.4k points

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