Solve the Equation the Solution Is N=

Solve the Equation

The solution is n=

The solution is z=

2005 There were 1090 million Internet users for the first time during the year .

Let the number of federal hazardous waste sites in California =C

And the number of federal hazardous waste sites in Washington =W

Then according to the given condition the number of federal hazardous waste sites in California in 2004 is C=2W-6

W=

In Washington, there were 18 federal hazardous waste sites.

Previous number of voters=78.4 million

Present number of voters=129.7 million

The percent change in the number of voters is 39.5%.

t=6 hr

The region shown in figure is rectangle with length=10miles and width=5miles.

Area of the rectangle =length x width=10 x 5=50 square miles

The area is 50 square miles.

Question 8:

Solution.

The sum of all the three angles of a triangle =180 degrees

Let x be the unknown angle, then according to the given data, x+91+43=180

x=180-91-43=46 degrees

The measure of the missing angle is 46 degrees.

Question 9:

Solution

The circumference of a circle =2r=6 in.

radius, r=3

Area of the circle=r2=32

The radius of the circle is 3 in. And the area is 9.

Question 10:

Solution:

Question 11:

Solution:

Question 12:

Solution: The inequality is.

Question 13:

Solution: The solution is straight forward using the given table.

However, checking the inequality for take.

Then condition false.

Checking the inequality for take.

Then condition satisfied.

Therefore, The correct inequality "D."

Question 14:

Solution.

The correct solution set is.

Question 15:

Solution.

The solution set is.

Question 16:

Solution.

The solution set is.

Question 17:

Solution:

Student score on first test=72

Student score on second test=x

Average score=80

The student needs to score at least 88 out 100 on the test.

Question 18:

Solution: Let x be the cost of the car, then according to the given condition,

The answer is $21,750.

Question 19:

Solution:

The solution set is t=0.

Question 20:

Solution: The year in which there were 1.7 million in mates is given by 1.7=0.05x-98.5

0.05x=1.7+98.5