09/23/19

Twice a number increased by 5 is at least 19

09/23/19

What is the original width in inches?

A rectangular piece of metal is 30 in longer than it is wide. Squares with sides 6 in long are cut from the four corners and the flaps are folded upward to form an open box. If the volume of the... more

09/23/19

Algebra . Cannon ball with height and speed to hit the ground

A cannon ball is launched upward with a velocity of 16 feet per second from the top of a 32 foot tall building. Its height after t seconds is given by the equation S=−16t2+16t+32. When does the... more

09/23/19

Problem solving

The area of Desert A is three times the area of desert B. If the sum of their areas is 1600000 square miles, find the the area of each desert

09/23/19

Twice a number -5 is seven

09/22/19

Find the cost of each notebook and each thumb drive.

Troy and Lisa were shopping for school supplies. Each purchased different quantities of the same notebook and thumb drive. Troy bought 4 notebooks and 13 thumb drives for $254. Lisa bought 5... more

09/22/19

One eighth of m (algebra)

09/22/19

Need help with cost function

The cost function for a certain company is C = 30x + 600 and the revenue is given by R = 100x − 0.5x2. Recall that profit is revenue minus cost. Set up a quadratic equation and find two values... more

09/22/19

Write the following sentence as a linear equation

Adding 16 to 5 times a number x is 49

09/21/19

The half-life of polonium-218 is 3.0 minutes. If you start with 30.0 g, how long will it be before only 2.0 g remains?

The half-life of polonium-218 is 3.0 minutes. If you start with 30.0 g, how long will it be before only 2.0 g remains?

09/21/19

bayes theorm and conditional probability

There are two coins on a table. When both are flipped, one coin landson heads with probability 0.5 while the other lands on heads withprobability 0.6. A coin is randomly selected from the table and... more

09/21/19

Shift up 2 units reflect on the x-axis and y-axis

09/21/19

whats the average speed of each plane ?

Two planes leave from Atlanta, Georgia. One makes a 7 hr flight to Seattle, Washington, and the other makes a 3 hr flight to Boston, Massachusetts. The plane to Boston averages 52mph slower than... more

09/20/19

Math word problem

A man is ten times as old as his son and twice as old as his daughter. The sum of the ages of all three is 64 years. How old is each person?

09/20/19

Need help with these math problems (College Algebra)

Need help finding the solutions to these problems. I cannot find them.1.For the given functions f and​ g, complete parts​ (a)-(h). For parts​ (a)-(d), also find the... more

College Algebra

Find the equation of the linear function g that has g(9)=8 and that is parallel to k(u)=213u−24.

09/20/19

Find an equation for the second line.

Consider the following two lines. The first passes through the points (2,-4) and (5,5). The second line passes through the point (2,1) and is parallel to the first line.

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